I don't get why people find that funny, he's absolutely right. It's gotten better but Linux is still requiring a lot more tinkering compared to Windows, and mainstream doesn't do tinkering. Let me give some examples as well.
I have windows and fedora dual booted. I also have 4 physical drives in the PC, 1 for windows, 1 for Linux and then 2 separate drives to keep windows data and Linux data. If I do a clean install of windows and want to play steam games all I need to do is let windows update run, install steam, direct steam to access the downloaded games on my secondary drive and the rest is "Steam magic". If I do a clean install of Fedora and I want to play Steam I have to do system update, then manually install graphics drivers, then install steam, then mount the secondary drive then direct to steam to the secondary drive and the rest is "Steam magic". If I don't want to do the last two steps again, because Fedora doesn't automount secondary drives, I need to also set up automounting by messing with the terminal and confog files. Honestly, you lost the mainstream gamer the moment they had to manually install graphics card drivers (because you need to do it through a terminal).
Another less important example, but one I still found funny, is when I wanted to make a new distro installer. I've used balena etcher to flash my stick on Windows, but I didn't want to reboot into It Windows so I installed it on Fedora, downloaded the image I wanted to flash, started balena and added the file. I get some header error. I didn't feel like troubleshooting so I reboot into Windows, download the exact same image, started balena and added the file. No errors and I could flash without any issues. Same file and (in theory) same software but it works on Windows and doesn't work on Linux.
And of course there's the Nvidia cards sucking thing, which is not at all suitable for mainstream considering almost 80% of steam users are using Nvidia cards. I get that's almost entirely Nvidias fault but it's still an issue with Linux. When your entire system black screens as KDE plasma is booting up even an above average user is not going to know how to troubleshoot that.