I tried FF the other day instead of Vivaldi and I was like, no scroll wheel to switch tabs? No quick commands? No workspaces? Ugh I am prepared to keep using a chromium engine rather than give up all the "power user" features. It's just sooo good.
Been using gestures for so long I constantly catch myself using them in other apps where it doesn't work and getting frustrated at myself.
I’m currently using both browsers, and I've been with FF for a very long time. But the things that come with Vivaldi from the very beginning make it my daily driver.
I went whole hog. The sync features are great between computer and phone app (phone app is excellent!) and they actively disable all the terrible shit from chrome. It works with bing/chat gpt too which is nice. They have been very vocal against Google proposed changes and I'm confident they will work around them if at all possible. If not, hell yeah, I'm jumping ship, but I give Vivaldi a lot of credit for what they've done this far. I'm hanging in there for now.