Downloading copyrighted ROMs is illegal in many jurisdictions. Ensure you own the original hardware or licenses for the games in any collection you use. set up RetroArch on your Switch to run these specific arcade cores?
The "New" versions of these collections often feature updated cores that fix audio lag or graphical glitches in newer arcade titles (like those on the CPS3 board). Look for releases tagged with the current year to ensure you are getting the most optimized experience for modern Switch firmware versions.