Just started and already running with some issues...

Hello there! Sorry for posting this, but I've been trying to get my Steam Deck OLED settled with EmuDeck to start emulating stuff but... well yeah, I've already started getting issues.

I wanted to start with a game I wanted to play the most, that being 2014 FIFA WORLD CUP. I installed everything via EmuDeck and... RPCS3 is the only emulator that I ran an error installing with... Literally the only one.

Made a clean install, both of RPCS3 and EmuDeck, then I just used the version on Discovery over it, ran with more problems not accepting the PS3UPDAT.PUP, then I used the ImageApp from RPCS3's page which initially worked, but then it didn't? then back with discovery's it actually accepted the PS3UPDAT file but I can't create shortcuts for steam, Steam ROM Manager won't add either RPCS3 nor the FIFA game, not to mention it runs like shit...

I've been at it for 5 hours now and now that the battery has been discharged from 91% to 11% I've decided to give up for today, surrender and then I thought of maybe asking here. What the hell am I doing wrong here, because I've got no clue honestly, saw in some old threads that there was an issue with RPCS3's install via EmuDeck but that was 2 years ago and even the creator commented that it was fixed, yet here I am, unable to install RPCS3 via EmuDeck and everything I tried as an alternative seems to fail miserably...

So, yeah. that... thank you for reading up to this point.