Though I was wondering how you guys handled transferring files/storage drives from Windows to Linux (if that's the jump you made). From my understanding you need to format your SSD/HDD differently, but how does that affect the files you already have on a drive that's set up for Windows?
This is correct, and something I glossed over myself when I did my switch. The result has caused me a lot of pain and headaches trying to get my Linux OS to talk consistently with everything I have on there, so I would not recommend doing what I did. For a long time I couldn't figure out why most of my games wouldn't even run for me, even when there was documentation showing that they were fully compatible with Proton. Turns out Proton has issues talking to NTFS drives, and since I had housed my data on an external drive, and didn't reformat when I switched, I had to make some config changes before it would launch anything.
I don't remember the exact change I made, but it probably would have been better if I hadn't had to do that troubleshooting at all.