I have an RX 5700 XT and tried to turn on the virtual super resolution in the settings. When clicking on it, my monitor would just become black for a second and the setting would still stay off.
I was using the "recommended" driver, so I updated to the newest "recommended+optional" 20.8.2 version.
Now the VSR option is completely missing.
Monitor is an ancient 1920x1200 Eizo. It is connected with a DVI cable + HDMI adapter. Could that be the source of the issue?