Just wanted to add in an additional piece of data. After responding last night, I put the system to sleep and left it unplugged. This morning it did power on, however only after I pushed the button three / four times. Then the screen stayed black for about 30 seconds, the power light flashed, and then the framework logo appeared. I went into the BIOS, and the date/clock were reset to 1/1/2021 00:00:00, same as user PSE.