I think you are addressing the issues wrong.

Unsupported hardware is a reality in Linux, even if I didn't find any in the last 10+ years, my needs are much more limited.

Controllers do work just fine, as well as Bluetooth, in my experience. Maybe share some issues and let's see why.

Troubleshooting in Linux means understand why stuff don't work as you expect, not copypasta 50 different solutions. There are 50 solutions because there are 100 ways to do stuff and different distros and versions out there. The "unified" experience is from the windows world, not the Linux world.

Nvidia is a known issue on Linux, prrprietary drivers kind of sucks and there are no good open ones, at least for newish nvidia cards. But again, my experience with nvidia has always been very good, with proprietary drivers.

Steam, I used it trough wine to run windows games on Linux, with good success (1 game, so YMMV), and I found it amazing that it was even possible to do. But never used controllers

I can see everyone down voting you to oblivion... And that's sort of fair. But that's beside the point.

I was having trouble with NVIDIA while using mint early on and decided to switch to Fedora. Maybe try that once. Fedora has better defaults for nvidia.

Use the KDE Plasma spin btw. See if it works.

Keep on your "windows mindset", won't be very good on Linux i guess.

Maybe a fresh install could help if you made too much of a mess, who knows.

Still won't fix your problems unless you find a way to address the issues. Maybe post them here so that we could help.

Thanks, I might try that if a new install doesn't work

Thanks. Just getting heated because I really want it to work for me

Thanks ill maybe give that a shot

I'm just trying a reinstall. I'm thinking something happened when making the Bootable usb.

Nope I was wrong. A fresh install didn't work

No I didn't. When I installed Linux mint the first time I was able to fix everything. I needed to reinstall it and that is where this controller issue started

I've spent all night and all day reading documentation and trying every solution I could find.

Sorry to hear that Linux Mint is not working well for you. Unfortunately, things can sometimes still be rough when it comes to hardware support. I have personally also had issues with Nvidia GPUs and Bluetooth. Often this is because the manufacturers only provide drivers for Windows and Linux drivers need to be created by the community.

Regarding Nvidia and secure boot. I've had the same issue (on both Mint and other distros). After some frustrations (including a BIOS update) I finally gave up and disabled secure boot. Since then, I haven't had any issues with my dual boot with Win 10 (but I probably won't buy another Nvidia GPU). What makes you say that Windows requires Secure Boot?

No I didn’t. When I installed Linux mint the first time I was able to fix everything. I needed to reinstall it and that is where this controller issue started

This seems quite weird. Are you perhaps missing a package (e.g. steam-devices)?