Vivaldi is supporting for less than a year (June 2025 it stop) and edge is unclear but may support it simultaneously (at least for now). Brave has “partial support” which means it may as well not and they’ve left a “lot of wiggle room” to drop support in their statement.
If you want to keep using ublock origin, get Firefox. You should just get Firefox because it’s the best browser for privacy/not using chromium in general and it works well.