So far, I’ve seen nothing on Firefox – but I am getting some minor hiccups on ReVanced which seem to be consistent with the influence of the AdBlock detection. Stuff like playback stopping after 3 videos until I unpause it, probably coming from the pop-up appearing.
Thank the good god for the incredible folks maintaining uBlock origin.
Edit: and ReVanced, and SmartTube, and Newpipe, and everything… But especially uBlock origin. That thing is a security necessity.