Not the guy you're replying to, but I have been using Thorium for the past couple of weeks. It's pretty nice, kinda like what Edge was before going to shit for the past year or so. But being a Chromium browser, it eventually will be hit with the ManifestV2-no-more hammer. The maintainer said the best he'll be able to do is use some patches to keep ManifestV2 active through enterprise group policies, but it's expected google will eventually remove the ManifestV2 code entirely, at which point he said he's not going to be able to maintain a fork to keep ManifestV2 in.

I dislike Brave for some of its sketchyness in the past, and the other Chromium forks haven't made clear guidelines on what they're going to do when ManifestV3 is made the default, so I'm bracing because I think I'm going to be forced to go back to Firefox because of AdBlock shenanigans.