Catastrophic Errors using Quest 3s, including only getting passthrough with no usable UI

I've had my Meta Quest 3s for over a year, and it's worked mostly without major issue. However, while initially using the headset without issue today, I've run into issues over the past couple of hours of experiencing a catastrophic error (or series of errors) meaning that the headset is largely unusable. 

Upon first encountering the error (being unable to see files on my network) I reset my headset, as after trying other fixes, that has typically solved issues in the past. It hasn't here. It booted up to a mostly broken passthrough screen (of it being heavily lagged, and no UI coming up at all. Somehow, through all the steps described below, it's improved to the point that the passthrough screen is no longer lagged in its display, and i get a UI (most of the time), but the headset is still largely unusable, as stated.

Most of the time it simply boots to passthrough with no usable UI after giving a bunch of errors including saying System UX, Files, Oculus Assistant Shop, Chats, Help & Tips have stopped. Sometimes it will give only some of those "stop" errors.  Most of the time I get no UI at all, sometimes it will bring up a UI, but no downloaded app will launch, or it will start to launch and then immediately fail. SOME apps that are built into the headset (like the browser or First Encounters) seem to work. Worlds (not that I ever used it) states that it's updating and never does. I've attempted to uninstall and reinstall downloaded apps that I use, and it will just become queued and never install. 

On the Meta Horizons app, sees that the headset and controllers are there, but it states the headset is connecting, but never does. Somehow, I did get it to a point where it said it was connected once, but upon using that opportunity to disconnect the wifi through the horizons app to try to reconnect it, upon reconnecting to wifi through my phone's settings, the horizon app has gone back to never showing that the headset is connected ever again--just eternally in the "headset connecting" status. 

I have tried: hard resetting the headset, resetting my modem/router and disconnecting my connection through the Meta Horizons app by inputting an incorrect password to hopefully sever any connection the headset has with the WIFI. I did a number of google searches and found a reddit page (that i'm not allowed to link, apparently) that seems to describe the bug i'm experiencing and I went through all the steps it describes to solve it but it hasn't helped. 

I'd like to avoid trying a factory reset of the headset both because of the general headache/time involved with any factory reset, and the specific message contained in that reddit post that according to others, a factory reset doesn't solve the issue (although i'm at a loss as to why it wouldn't, if it seems to fundamentally be a software issue, somewhere). 

Thank you in advance for both reading this novel, and any assistance you can provide.