I'm not aware of any issues with 22.04. There may have been, at the time it was launched, 2 years ago, but there shouldn't be today. Again, 18.04 is not supported upstream and support for it from various emulators is dwindling.

Have done now. Its giving me no errors. Guess I will just have to reinstall and see if that fixes it. Thanks for your help.

Here's a collection of methods to determine the video ram of a Linux system:

https://www.cyberciti.biz/faq/howto-find-linux-vga-video-card-ram/

Appreciate your help, got in with the last command! When I go to scrape now I get this error for quite a few games. ERR: error processing /home/arcade/RetroPie/roms/gamegear/Arena (USA, Europe).gg: hash not found