If rolled out widely, this would make web browsers and third-party YouTube clients without a DRM license unusable for YouTube playback, download, etc. This would include almost all open-source web browsers and almost all third-party YouTube clients. Archive link to reddit post about this
The number one reason I use YouTube is for fitness routines I can do at home (going to a physical gym means I will not workout), and keeping up on finance news. I will gladly find other ways to get this information. I just use YouTube because it’s the easiest and has all of the people I like in one place.
I’ll pay for deezer or apple music if I have to, lol