Doesn’t PS2 use a PowerPC architecture? And newer consoles are on x86 so having FPGAs for either stack feels uneconomic right now. Also the issue with making roms compatible is a lot of them used chip level tricks to get certain things to function.
Agree with all of this. People who deride games just because they are mobile are not much better than those people who see video games as being strictly for children
You’ll need to download their software to map the rear keys/tweak anything else. They also have a phone app that does the same thing if you didn’t want to install it on your computer