@Olifant2
If you still use the computer with nvidia gt740, install kernel 6.8 with mainline installer tool then you can use nvidia driver 470. With kernel 6.14 this driver doesn't work.
Test it, if everything works fine then, keep it.
But perhaps it is better for you to go back to Zorin 17.3 with your old hardware.
Also switch to Xorg at login (cogwheel) if you are on Wayland and disable hardware acceleration in your browser.