I'm using Teams (Version 1.4.00.29478) on macOS (BigSur 11.6) and I'm finding the select all text shortcut (CMD + A) isn't working. The cut, copy, paste and undo shortcuts all work fine, it's just select all which isn't working. I use it all the time so it's quite annoying. It works in all the other apps I've tested, including other Office apps like Word, Excel and Outlook. I've checked the Teams specific shortcuts but nothing is mapped to CMD + A and I've double checked the shortcut app I use (BetterTouchTools) and it's also not using CMD + A.