I'm still using Firefox as my primary browser on desktop and mobile. I have minor complaints, but nothing to make me consider switching to something else.
I've always stuggled with NewPipe, not because of NewPipe itself, but because YouTube and it's algorthim.
People act as if the algorthim is some sort of evil entity, but my viewing habbits follow recommended videos and content aware search. I find sticking to subscriptions and trending videos to be very trapping.
Funny, for me it's the opposite. I'm very glad to have only default un-personalised suggestions, plus my hand-curated subscriptions.
No more watching one chess video and being bombarded with chess content for a month, or watching one harmless satirical video about a politician and being bombarded with videos from the local right-populist party propaganda channel (yes, this has happened to me exactly as described).
Fair enough, one of us may have been lucky/unlucky with how content is served to us.
I have experience the "bombardment" of a suggestion, but I think my subscriptions are vaired enough that a click off that topic straightens it all out.
The same thing annoys me. I do hit the ‘three vertical dots’ menu and select “not interested” and I think that is effective but that takes a few seconds and is a slight nuisance.
Off topic, but I have a love/hate relationship YouTube because of privacy issues, especially my political and spiritual views. Same thing with TikTok, but at least that material is mostly silly so if advertisers can buy information on which silly stuff I watch, that seems slightly less harmful than YouTube.