I also use Vivaldi, and I don't care about the bloat.

I bought the entire computer, I'm going to use the entire computer.

When I need to use Chrome, I just use the Chrome Mask extension in Firefox to change my user agent. I haven’t had a site that actually failed to work on the Gecko engine instead of Chromium. It’s just lazy devs checking your user agent to see if you’re using Chromium, and then throwing a fit if you’re not.

Chrome Mask even has a built in site reporter, because broken sites don’t actually conform to modern web interoperability requirements. If it fails to work on Gecko, there’s a good chance that it will also fail to work on other platforms (like Apple’s WebKit) as well. And the reports go to the team that develops Firefox, so they can figure out why the site is refusing to work on Gecko.

Vivaldi is a great Chromium browser. I'm more of a Firefox/Librewolf on my personal machines, but my work's software has a few features that only work with Chromium extensions so I had to use it. Was my preferred alternative to all others, while bloated it was highly controllable and didn't focus on unnecessary features like Brave or others. My work recently banned any browser that isn't Chrome/Edge/Firefox though, so I guess I'm back to Firefox and will ignore the features I can't use