A leftover file from NoMachine uninstallation prevents the starting of other programs
This problem occurs when the support for VirtualGL has been enabled in NoMachine by means of command 'nxserver --virtualglinstall'.
For example, when uninstalling NoMachine on Fedora 39, the following file is left:
/etc/udev/rules.d/99-virtualgl-dri.rules
which results in conflicts with other programs.
As a workaround, remove such file manually and reboot.
A similar behaviour can occur also on other platforms, the leftover file can be different.
SOLVED, Released in version 8.12.12
