There’s a chance the only casualty was the USB power adapter plugged into the wall. If you have any around, try using another 5V USB-C power adapter and USB-C cable to see if that fixes things. Plug directly into a known good outlet with no power strips, surge protectors, extension cables, or anything else to eliminate any other potential variables.
EDIT: Also, there was an issue with a batch of power adapters per another thread. If yours was one of them perhaps the fluctuation during the power outage pushed it over the edge. More info about that here: Tidbyt generates audible buzz / hum noise that changes when display changes
Your image didn’t load for me to see, but here’s a photo example of another user having a power adapter issue for you to compare: Screen stuck!