I'm running Debian 11. I tested this in RockyLinux - which is a CentOS splinter - and it worked.
At a terminal prompt enter:
xrandr --listmonitors
The output will look something like this:
Monitors: 1
0: +*LVDS-1 3620/309x2036/174+0+0 LVDS-1
In the output the end bit is your video output. In my case it's "LVDS-1
"
In a terminal enter:
sudo nano /etc/xdg/autostart/.desktop
Enter the below bit of info changing the LVDS-1
to what ever the output was from your system.
[Desktop Entry]
Type=Application
Name=xrandr
Exec=xrandr --output LVDS-1 --scale 2.65x2.65
OnlyShowIn=GNOME;
Reboot your system and you should be set.