Firefox is still the better browser, and frankly I can’t just get over that anything else is simply chrome with a skin.

I like Vivaldi, it is my secondary browser, but Firefox is preferred. But good for you, anything is better than Brave. Vivaldi has some great aspirations of being a suite like Mozilla was back in the day, but if they want to do that, they need to make their upgrades not break their sync. The fact that happens so often makes me worry a little about their overall system.