It got pretty bloated in recent years with reactions and animated stickers to name a few

I see, but FAT32 is pretty limiting for file sizes no?

I still haven't played it yet, but I have it installed ready to play

i didn't change permissions recursivly, only for the mountpoints root

you can chown it all

The permissions inside the partition were set correctly, it was only the "root" of the partition that went off, I only created the partition using Mint, while Arch did the whole installation and wrote all the files

Either way I chown both / and /boot to root:root and chmod both / and /boot to 0755 (looked these up from my other Arch machine) and the bugs are gone

Things weren't working because of the owner+permission being set by Mint instead of the Arch installer, it prevented non-root from reading anything off the system, now that I chmod the mount points, things are functioning well

Why? I chowned and chmod the mount points only (not recursively) and now the system is functioning correctly

It was only the root of the partitions that I messed up, and I guess the bugs were caused because the Mint live boot only gave the user read permissions (no group or others can read) so I believe shit is fine, plus it's a fresh installation so there's that too

Yes I only created / and /boot from the Mint live boot

Do I need to run another chown for the boot partition? If so is chown root:root /boot the correct command?

Update: chowning didn't fix dbus failing

Update 2: the warnings did go away though

Update 3: the dbus errors did change

Update 4: I think my / and /boot permissions are messed up to, they are drwx-----

I've had a similar setup for quite some time, but you didn't mention what GPU you're running, also since you're running Mint, are you comfortable with Windows games (through wine/proton) and emulation?

How are you implementing shared data? Soft sym links between homes? Or like a separate folder with a group full access?

Don't post it anywhere then?