Ok, so this is fixed by guest additions 6.1.10-dfsg-1~ubuntu1.20.04.1 from focal-updates repo (see bug 1882106 for some details of that update).
Ok, so this is fixed by guest additions 6.1.10- dfsg-1~ ubuntu1. 20.04.1 from focal-updates repo (see bug 1882106 for some details of that update).