Stutters only in FF14, sometimes hours between stutters

[Beavertales]

I've been troubleshooting stutter-related issues since DT release. I never had issues before the release, but now this issue is a persistent thing for me. I was initially getting 1-2 second stutters every 30 minutes exactly. It was easily replicated, and I figured out it was due to iCue. Uninstalling iCue resolved those stutters. At this point, I can go hours without stutters, but it seems like I stutter whenever windows does an update in the background, and other times I stutter for seemingly no reason. I can't find an Event in the Event Viewer that happens at the time of the stutters consistently. This doesn't happen in any other game. I've tried Honkai: Star Rail, Skyrim, Nier: Automata, God of War and no issues at all. I can be sitting still doing absolutely nothing in FF14, and it will still stutter/freeze for about a second. The GPU usage will sometimes plummet to 0, sometimes it won't be affected. Sometimes my CPU usage will slightly dip, but it usually seems to be unaffected. Some solutions I've tried:

Reinstalling the game on my C: drive
Removing all OC's and GPU + CPU undervolt
Reducing graphics settings
Removing my Xbox controller and disabling gamepad in-game
Switching between DLSS and FSR with different thresholds and scaling options
Disabling Windows RRAS Root Enumerator
Disabling VSync
Enabling VSync
Switching between in-game frame limiter and Nvidia Control panel FPS limiter
Updating GPU drivers
Updating Chipset Drivers
Pausing Windows updates
Updating windows
Removing my headset usb connections
Disabling CPU hungry background processes
Switching between full screen and borderless windowed in game
Set FPS limit to 60
Set FPS Limit to 143
Run both monitors at the same refresh rate
Disabling discord overlay and other injections like Overwolf
Removing external drives and doing a complete fresh installation of windows

Specs:
RTX 4080
5800X3D
Samsung 980 1TB
32GB 3600MHz DDR4

This has been a pain since DT release and I'd love to be rid of it.