Made the switch after the sidebar removal, here's what I built to make it work.
I wasn't an Edge power user but the sidebar was the one feature that kept me there. Web apps pinned right there, always visible. It worked well. Then Microsoft quietly removed it.
I spent a day trying to replicate it in other browsers and landed on Vivaldi. It has the sidebar, it's Chromium-based, and it's surprisingly configurable. Solid switch.
The problem is I run two profiles. One for work, one for personal. Every time I tweaked a theme or changed a keyboard shortcut in one, the other would fall behind. Vivaldi has no built-in cross-profile sync for settings so I was copying stuff by hand.
I spent a weekend telling Claude to write Rust and ended up with a small app that reads the Preferences JSON from one profile and copies specific keys to another. Nothing leaves your machine. No accounts. No cloud. Just file copies with a backup first.
Figured someone else here probably made the same jump and hit the same problem.
It's free and open source: https://smithplus.github.io/VivaldiProfileSyncer/