Update 21/09/2024: #4734 (comment) EDIT by @unixfox: The Invidious team is aware of this issue. It appears that it affects all the software using YouTube. Please refrain from commenting if you have...
EDIT: For those who are too lazy to click the link, this is what it says
Hello,
Sad news for everyone. YouTube/Google has patched the latest workaround that we had in order to restore the video playback functionality.
Right now we have no other solutions/fixes. You may be able to get Invidious working on residential IP addresses (like at home) but on datacenter IP addresses Invidious won't work anymore.
This is not the death of this project. We will still try to find new solutions, but this might take time, months probably.
I have updated the public instance list in order to reflect on the working public instances: https://instances.invidious.io. Please don't abuse them since the number is really low.
Feel free to discuss this politely on Matrix or IRC.
Sadly, this is not simple like this. Of course, there is "haha I will touch grass now", but there are pieces of content that are needed yet there's no analog elsewhere. Disassembly guides for random pieces of tech. Lectures. Task breakdowns from competitions. A lot of things the original uploaders put there and just forgot.
I mean, I can only do my part by downloading everything I like or may need - in fear of it potentially being taken away. But not sure where I'd reupload it.