Vivaldi is fairly nice, but it's another Chromium. Similar to Brave, they've said they won't be including the Topics API, so it doesn't quite feed into the monoculture. (Disappointingly, they seem like they won't be disabling WEI, Google's latest land grab. Admittedly, for understandable reasons that mirror the original DRM for the web a decade ago, the blunt fact is that they seem like they'll go along with it anyway.) Considering the team is (supposedly) largely shared from some people that used to develop their own engine (Presto, before Opera switched to Chromium), I could also believe they could (possibly would) hard fork Chromium if they felt it necessary. If this is enough for you, then I'm sure you'll have a wonderful time with it, and I've enjoyed it well enough when I've tried it. Personally, I don't daily it.