Librewolf is also my main atm. I've been using it for a while so I've forgotten how it compares to a chromium-based browser, however there aren't any deal breakers for me. I think my three biggest issues are;
1. favicons don't sync which can be pain when installing,
2. some websites demand chromium-based browser
3. no-matter what add-ons, or combination of settings I've tried it still gives out a unique fingerprint (Brave has a randomised fingerprint on EFF test, but fails the test at fingerprint.demo).
I did read about the new Brave Origin (
Link) paid browser in the last few days ($60, but free on Linux) which is just the Brave browser including privacy features and shields. Removes everything else like TOR, crypto-stuff, VPN, Wallet, AI etc. I've downloaded the nightly and it's really snappy and I ought to give it an extended test drive. Although I still feel conflicted about using Chromium over Firefox which is one of the things that sent me back to a FF-based browser.