It’s just the engine, but it’s supposed to be a much more modern and smaller engine, so writing a new browser on top of it would be much easier than using gecko is. But you’re right, it’s not a browser. There is Verso as a prototype browser, but it’s far from functional.

I feel this way about pickles

I have disabled history on youtube, so I only get shorts from people I’m subscribed to, and they are mostly very enjoyable. You can often get through all new shorts in about 30 mins before you start seeing repeats.

Ublock is added by default to librewolf, unless you installed it in an unconventional way.

When it comes to zen I haven’t really seen a compelling reason for it. I care about privacy more than functionality, but I don’t really want to go about hardening a whole new browser.

I have found that using PWAs with librewolf as the engine is very in lign with my mental image of how to run things.