Since the drives are being mounted in /run/media they’re probably being mounted by your file manager, not via /etc/fstab. You could instead have them mounted on boot by the root user via /etc/fstab (the classic way) or systemd.mount (slightly friendlier),
This is where I'm stuck. I read that changing the mount via fstab requires the UUID, which I can see with lsblk -f. But /etc/fstab has the same UUID for every drive, I have no idea what to do with it. As it is the 3 internal sata drives don't auto mount (even though they're selected in settings) and require a password to mount, and revert pemissions after reboot. I read it's due to /run but I'm stuck.
The permission issue is probably for a different reason. Are you sure the filesystem(s) you’re mounting supports POSIX style permissions? FAT doesn’t, and NTFS requires a special flag for it. The files might look like they have permissions, but they’re coming from the mount options and modifying them will either fail outright or not do anything.
They're NTFS. I just switched from Ubuntu Studio to Cachyos and they worked fine with mounting and permissions on Studio. Studio had them mounted in /media, took me a while to find that they were under /run/media on Cachy.
Haha yeah it's been a journey. 5 months into Linux but I've learned a ton. I'll start digging into this and in the mean time just settle for mounting at boot and changing the permissions to /run/media/USER every time so my server can get in. Appreciate the time, thank you.