This sucks, I hate when you are ready to get down on some good VR gaming everything goes wrong with your equipment and the time you were ready to game is spent troubleshooting issues.
From what you said, it sounds like everything I would have also tried. When I get to the point you are at I ask myself, why did I just spend two hours futzing around trying to fix this and still it's not working when I could do what I know will most likely fix it in under 30 minutes. So lately this what I do and it has solved everything:
First uninstall the app from your PC, do make sure to back up any of your PC VR games and their saves. Normally I just rename the oculus folder to OculusBAK. Then uninstall the Meta application from your phone. Restart your PC, make sure to actually reboot, not just turn it on, do an actual restart to make sure it is fresh. Then reboot your phone. Now on your quest hold the power button while holding the volume down. When it boots up, in the menu, choose factory reset. Then once it boots up, hold the power button in till reboots. Now follow the setup in the headset. Install the Meta application on your phone. Once you setup the phone and the headset to the phone, reboot them both again. Then install your PCVR using the cable your headset came with. Once this is complete setup all your other apps. Now the last thing I do, while connected to PCVR is copy everything under that OculusBAK folder to the new oculus folder again while you are connected. It will tell you it cannot overwrite some files, that is okay, click skip when this happens. This has always fixed any issues I have ever had. Yes it sounds like a lot, but think of how much time you can spend troubleshooting. I've lost countless hours. I do the same thing when I have crazy PC issues too. Seems to be quicker and easier to just nuke it and start over then troubleshooting for hours upon hours.
Hope this helps,
James