What are the best alternatives at this point to Brave?
Ungoogled Chromium, if you don't mind supporting the monopoly, and the (IMO) onerous upgrade path.
Mozilla just shattered an extension ecosystem and now there's like 10 extensions left. You can do store extensions in Nightly, but you now need a firefox account to do so. (And you have to press secret invisible buttons, not joking.) Non-store extensions are apparently canceled.
It's a power grab all the way down. We wouldn't make excuses if Google did that and we shouldn't make excuses if Mozilla does it.
Current Mozilla does not behave in a way that would demonstrate that they are a good steward for Firefox or the open web.
The gutted extensions are exactly the kind that never worked in Chromium or another browser, so I don't see this as a disadvantage.
On the contrary, Firefox still has extensions that don't work in Chrome like Tree Style Tabs (it needs a userChrome.css to work properly but still)
(Yes, Dissenter is associated with bad people. No, I am not one of those bad people, I just use the browser. Yes, it is sad that this disclaimer needs to be written. Please don't downvote me.)