On my old phone with android 5 it works fine, I’m able to group tabs and can preview all tabs at once (grid view), but on my new tablet with Android 11 it is impossible.
Now Brave seems to be the only mainstream browser that doesn’t support such a basic feature.
Have a look here, even stock Samsung browser beats Brave to the ground by displaying tabs in grid view:
Where should I publish this problem in order for it to be read by someone of authority?