Thanks for the suggestion. I tried this, in addition to doing the same with the game files (just in case). Unfortunately it did not work :(
Here's the full log from the socialclub.log file
[00000000] Fri Sep 26 17:00:13 2025
[00000000] Rockstar Games Social Club SDK: x64 RELEASE
[00000000]
[00000000] Settings:
[00000000] Offline Only Mode: false
[00000000] Launcher Mode: false
[00000000] Running title: rdr2
[00000000] Platform: Steam
[00000000] Steam user: Anon232
[00000000] Environment: prod
[00000000] Language: English
[00000000]
[00000000] Network initialized
[00000000] Presence Supported: 0
[00000000] Friends Supported: 1
[00000000] Connection State Change Supported: 1
[00000000] Achievements Supported: 1
[00000000] Autologin/Transfer Supported: 1
[00000000]
[00000000] RAGE initialized
[00000000] Social Club Directory: C:\Program Files\Rockstar Games\Social Club\
[00000000] Social Club CEF Directory: C:\Program Files\Rockstar Games\Social Club\
[00000000] Root Data Directory: C:\users\steamuser\Documents\Rockstar Games\
[00000000] Applying discord ID override: 643897785271189524
[00000000] Insufficient title metadata for initializing Discord
[00000000] Initialized discord using client ID: 643897785271189524, title ID: rdr2
[00000000] File System Initialized
[00000000]
[00000000] Command Line Arguments:
[00000000] -skipPatcherCheck
[00000000] -steamLocation
[00000000] Z:\run\media\system\BTRFS_4TB_NVME\SteamLibrary\steamapps\common\Red Dead Redemption 2
[00000000] -enableCrashpad
[00000000] -useSteam
[00000000] -steamAppId=1174180
[00000000] -scCommerceProvider=4
[00000000] -fromRGL
[00000000] -scDiscordClientId=643897785271189524
[00000000] -rglLanguage=en-US
[00000000]
[00000000] Version Info: 2.4.0.118
[00000000] JSON Interface initialized
[00000000] Internet manager initialized
[00000000] Social Club Data initialized
[00000003] Metadata initialized
[00000003] Achievement Manager initialized
[00000003] Player Manager initialized
[00000003] Gamer Pic Manager initialized
[00000018] Profile Manager initialized
[00000018] Presence Manager initialized
[00000018] Using commerce provider: 4
[00000018] Commerce Manager initialized
[00000018] Task Manager initialized
[00000018] Telemetry Manager initialized
[00000018] Network interface initialized
[00000018] Cloud Saves interface initialized
[00000019] Multi-Factor Authentication initialized
[00000019] Profanity filter initialized
[00000019] Game Intent Manager initialized
[00000021] Game/Launcher IPC initialized: 0
[00000021] Validating CEF directory: C:\Program Files\Rockstar Games\Social Club\
[00000021] Validating SDK directory: C:\Program Files\Rockstar Games\Social Club\
[00000161] Validating Social Club dependency versions:
[00000161] Social Club DLL (C:\Program Files\Rockstar Games\Social Club\socialclub.dll) - 2.4.0.118
[00000161] Social Club Helper (C:\Program Files\Rockstar Games\Social Club\SocialClubHelper.exe) - 2.4.0.118
[00000161] Chromium Embedded Framework (C:\Program Files\Rockstar Games\Social Club\libcef.dll) - 109.1.18.0
[00000161] Vulkan Renderer Layer (C:\Program Files\Rockstar Games\Social Club\SocialClubVulkanLayer.dll) - 2.4.0.118
[00000161] D3D12 Renderer DLL (C:\Program Files\Rockstar Games\Social Club\SocialClubD3D12Renderer.dll) - 2.4.0.118
[00000161] RGSC-Query Version: 0.0.0-development
[00000161] SDK fully initialized
[00000161]
[00000172] Social Club UI - Entering State: 'WAIT_BROWSER'
[00001529] UpdateConnectionState :: Connection state changed from offline to online
[00001529] OnChannelConnected - rgsc_gameinst_0 (remoteProcessId 388)
[00001645] Browser available
[00001645] Social Club UI - Entering State: 'WAIT_IPC'
[00001654] Social Club UI - Entering State: 'WAIT_BROWSER_WINDOW'
[00002240] Social Club UI - Entering State: 'LOADING'
[00002240] RgscUi::LoadUrl() called with url 'https://scui.rockstargames.com/desktop'
[00002241] CreateIpcChannel returning channel name: rgsc_ipc_760_channel_0
[00002243] Social Club UI - Entering State: 'WAITING_FOR_PAGE_LOAD'
[00002622] OnChannelConnected - rgsc_ipc_760_channel_0 (remoteProcessId 2444)
[00002622] OnChannelError() - rgsc_ipc_760_channel_0
[00002622] Connection to UI renderer lost!
[00002622] UI renderer disconnected
[00002736] Social Club UI - Entering State: 'FAILED'
[00002736] Social Club UI - Entering State: 'WAIT_BROWSER'
[00002801] Browser available
[00002801] Social Club UI - Entering State: 'WAIT_IPC'
[00003177] Social Club UI - Entering State: 'WAIT_BROWSER_WINDOW'
[00003243] Social Club UI - Entering State: 'LOADING'
[00003243] RgscUi::LoadUrl() called with url 'https://scui.rockstargames.com/desktop'
[00003244] CreateIpcChannel returning channel name: rgsc_ipc_760_channel_1
[00003246] Social Club UI - Entering State: 'WAITING_FOR_PAGE_LOAD'
[00003578] OnChannelConnected - rgsc_ipc_760_channel_1 (remoteProcessId 2544)
[00003611] OnChannelError() - rgsc_ipc_760_channel_1
[00003611] Connection to UI renderer lost!
[00003611] UI renderer disconnected
[00003613] UI renderer terminated
[00063299] [WARNING] Timed out loading Social Club UI
[00063299] [ERROR] Failed to load social club UI, falling back to offline site
[00063299] Social Club UI - Entering State: 'LOADING'
[00063299] RgscUi::LoadUrl() called with url 'C:\Program Files\Rockstar Games\Social Club\UI\default.html'
[00063299] CreateIpcChannel returning channel name: rgsc_ipc_760_channel_2
[00063302] Social Club UI - Entering State: 'WAITING_FOR_PAGE_LOAD'
[00063600] OnChannelConnected - rgsc_ipc_760_channel_2 (remoteProcessId 2744)
[00063667] OnChannelError() - rgsc_ipc_760_channel_2
[00063667] Connection to UI renderer lost!
[00063667] UI renderer disconnected
[00063669] UI renderer terminated
[00123336] [WARNING] Timed out loading Social Club UI
[00123336] [ERROR] Failed to load both the online and offline sites.
[00123336] Social Club UI - Entering State: 'FAILED'
[00254237] Shutting down...
I figured it out, I'm not sure if this is due to the suggestion from IngeniousRocks but I switched to ProtonGE 10, deleted the compat directory for RDR2 and tried again and it finally worked!