I've done everything I could think of or search for short of a complete windows reinstall but this issue just won't go away no matter what. My last hope is that anyone here might recognize this issue.
At random moments, 5+ times an hour, I get these 100% disk usage bursts on my SATA HDDs if they're being used in any way (playing a video from them, running a program from them, anything that has even the tiniest amount of disk activity makes it start happening), and during these bursts it completely freezes whatever that disk is doing. This makes my HDDs completely useless for everything since every 10 minutes it will freeze whatever it is doing for about 10 seconds. Whatever is doing it does not show up in the resource monitor, the usual repair commands did nothing, installing a different antivirus did nothing, and I get no returns on malware, which wouldn't be likely anyway because I've had this issue since the day I finished building this PC and installed Windows 11 a couple months ago.
In the examples in this image I was doing nothing besides playing a video from my E: drive (which is the activity shown in the monitor), the exact same happens with the D: drive.