With WFH and grocery delivery I only have to leave for dates and let’s be honest here…

Then you deal with it when you get back. Easy as that. If it is non-critical enough to turn off when you leave the house, then it is non-critical enough fix it later when you have time. Fixing software/bios/program errors are not time-sensitive.

Hardware now is EXTREMELY safe and it has to be tested against electrical surges, ESD events, and depending in the device, different temps in order to get CE conformity and UL ratings. There is a near-zero chance that it would cause a fire or something critical, especiallly because home servers typically are not under load most of the time.

I bought a Portable Power Station (e.g. Anker SOLIX C300) to use as an Uninterruptible Power Supply (UPS) for my homeserver (~ 40 Watt) to buy me - or better my utility company - a few hours in case the power fails.

I don’t have one. It’s just a tiny single board computer and an HDD running reasonably stable scripts every few hours and a couple of small server programs. Nothing it’s doing is critical, so in the rare case when something breaks, it stays broken until I fix it.

You didn’t mention it directly, but if you want to access any of your hosted services remotely, you will almost certainly want some kind of VPN solution. I host a few things over HTTPS, but there’s no way I’m exposing anything critical directly to the internet.