Yep, basically all the space that was occupied by video thumbanails is now empty with a graphic explaining why. I would attach a screenshot but I no longer seem to have that graphic anymore and it’s back to normal.
It has already shown up for me and I don’t really mind. The only thing I do on YouTube now is look up a creator and watch a video I want based on my Newpipe feed.
Looks interesting! Might give it a go later to check it out.