Well I guess jewtube decided to roll out anti adblock messages before watching videos. I just got my first message saying "youtube does not allow ad blocking software".
God forbid I want to watch something and not have my eyes and ears assaulted by Pfizer/McDonalds/Disney/etc. at max volume.
If they actually ban adblock I'll just stop using it entirely. It's not usable without it, and it's not worth the hassle to get around it.
Google has passed a downward spiral tipping point in revenue growth; more ads, fewer viewers, so more ads. There's no other path for them.
It may take a while but this will escalate to making all video Widevine'd with DRM - even making the whole browser DRM'd with Web Environment Integrity.
Moral is, buy a large HD and download everything you can while you can. So far yt-dlp with phantomjs and ffmpeg can still download anything even age-restricted.
Easily done by only allowing DRM to be unlocked by Premium/ads for a specified period of time. Even Premium will have ads eventually because that's where the other streaming firms are going.
You are right with DRM, it's coming whether we want it or not.