Sincerely, I'm just using Firefox ATM because of Sidebery.

If I could use something similar on Brave, I would go back in an instant.

My main issues with FF are that it is a battery hog on MacOS, doesn't have AV1 playing capabilities (or it has, but I would need to go through some configuring that I don't need to do in other browsers) and sometimes it stalls in certain pages (that's probably not FF fault, but that the web developers don't optimize for it... but still, it's not a problem on Brave, so, I don't really care for apologising for it).