I’m lost down the OS update rabbit hole

I have a Home Assistant Yellow with CM4 and NVMe. A week or two ago, I tried to update the HAOS. I have been unable to connect my mobile apps or laptop app since. I have tried a variety of things, including a factory reset, but that apparently did not work, because I have observed my automations working since the attempt. I have had no real success with the “screen” command, where the closest thing to useful has been being able to type commands, but with only random keystrokes being mirrored back to me. At the moment, the screen command is not connecting at all. I can’t troubleshoot this without some expert help.

Hi, have you checked https://support.nabucasa.com/hc/en-us/sections/24979689823901-Troubleshooting

Since your automations still run means that it’s just a matter of getting to connect to the webUI.

Have you tried to connect to http://homeassistant.local:8123 with a browser?
Do you know the current IP address and did you try to ping it?