This has been fixed on Chrome side (here) but it is still reproducible on Brave Version 1.16.68 Chromium: 86.0.4240.111 (Official Build) (64-bit) on Linux (Xubuntu).
It’s very frustrating. Please help.
I set the Panel to “Windows Can Cover”, then re-tested both Brave versions at full screen … where top of the browser window occupies the absolute top of the monitor … I am able to select / cycle through tabs.
FWIW - at the link you provided where it’s fixed in Chromium, it is stated:
“Congratulation for all, this problem has been fixed on version 86.0.4240.111”
My Dev version (1.17.55) is that … and my Nightly is newer.