Indeed, manifest v2 support alone is a killer feature that will keep me on FF as long as they support it.

It definitely helps that it's also a great (though imperfect) browser.

Yes, although they can't go all in on that because it doesn't help monetization...

I've been using Chrome with uBlock Origin Lite and not even once I found a case when this version of uBlock was behaving differently (as less efficient) than the "full" uBlock Origin

Maybe I'm just lucky, but even this argument is quite ... meh

Have you tried Brave?

chromium-ungoogled works perfectly fine with "extensions that can do real ad blocking" ;)