Oh yeah. Got that installed. Was fun because I hadn’t worked with Linux systems before, so finding the proper file locations was a little challenging for myself. Custom characters have post-its and I don’t get the big banner saying it was installed wrong. Even messed with performance settings the deck offers for each game and lowered those since, well, Isaac isn’t exactly the pinnacle of graphics. Even now, just custom characters, alt paths and their additional effects (rain drops, ash, etc) tanks my performance. Unless there’s some magic that I’m not seeing, I’ve tried what I know. It is a little annoying when games that have actual models, and a lot of them at once, don’t have issues at all (Deep Rock Galactic Survivor being a prime example).
The SD card is actually a very simple replacement. A few screws and the back plate comes off, then the card reader is a separate board. Ifixit places it at a 10 minute fix. No soldering, no replacing thermal paste. Assuming it’s just the reader and not something in the software, $20 and it’s fixed.
https://www.ifixit.com/Guide/Nintendo+Switch+Micro+SD+Card+Reader+Replacement/113031