So this sounds important in the release notes for the 18.0 home assistant O/S upgrade:
"Raspberry Pi 5 users need a bootloader from at least 2025-02-12, otherwise the display output may freeze early during the boot. Update the bootloader before installing this update, using one of the following methods"
The recommended bootloader update suggestions include doing it manually with a screen and keyboard attached (I have never had this on my raspberry, and I'm not sure I have the appropriate cable), inserting an sd-card (I guess that could be possible, but super inconvenient) or
"if you have an SSH terminal app installed, you can run ha os boards raspberrypi firmware update over SSH right after updating the OS."
So... I need to SSH in, or will home assistant actually come up and running again? I wouldn't want to brick my installation because I read this wrong.