This is not backed up by any data, but for me the experience on Chromium based browsers always seems faster and smoother, especially on modern, JS heavy sites.
Also, I’m a sucker for feature rich applications and I really like how much stuff Vivaldi and Brave have built-in. This is extremely subjective though and I know there are many people who consider all of this a terrible bloat.
Ente is as close as you can get to Google Photos with E2EE right now. I recently migrated there. The migration wasn’t painless and involved some scripting to handle albums and duplicates but the service itself is really good. Can recommend!