Just installed Fedora 31 in a full up to date Parallels Desktop. Before installing Parallels Tools, I had a correct selection of resolutions available. After installing Parallels Tools, the max resolution for 1024x768. Removing Parallels Tools brings back the resolutions. Is this expected behavior?
Are you still seeing this? How much memory are you giving to the virtual graphics adapter? My Fedora 31 / Gnome guests are working normally with 128mb of video memory. Here's a screen grab from my f31 console when the window is maximized: Parallels tools is installed and active: Code: $ systemctl is-active prltoolsd active