Too buggy on MacOS, going back to "stable"

On MacOS Big Sur (current), MacBook Pro 15" 2014:

  • semi-constant updating, running on every start and after about every 30 minutes
  • stays in “connecting account” state after every wake since like a week. Essentially, internet connection detection was waaaay more weak and slow since the first beta i tried
  • minor: Enter key is not bound to “start game”
  • since 2-3 days: Agent is asking for admin permissions on each bnet start

Half of those (#2 and #3) I already reported at least 6 months ago, no feedback or visible change - which is very Blizzard-esque but still disappointing.