I use QR and Barcode scanner very often to get redirected to a particular site instead of typing the URL. For that purpose, I totally rely on Firefox.
For browsing, I use Brave only, but this fails in that particular case. Also, I don’t want to have Firefox for QR & Barcode scanning feature only, as it eats up my ram and storage.
It would be great to have inbuilt QR & Barcode scanner in Brave browser itself. And I am really willing to see that feature because it is very helpful.
From user who is madly in 
with Brave.