PlayStation 1 emulator DuckStation changes license for no commercial use and no derivatives
(www.gamingonlinux.com)
I have had every type of emulator setup imaginable. I personally find RetroArch the most convenient. Sure, if I can setup RetroArch or a RetroPie, I can easily setup stand-alone emulators with a front-end. Been there done that. I chose what I found to be convenient for my needs
If you are only trying to genuinely help, removing the negative statements and trying not to come off as condescending would do wonders