Loads windows but only ever has a empty black screen with mouse visible

I may not have a complete history as it's not my computer but I'll add more details if needed.

Running Win 11, one of the monitors stopped working. Updated graphics card drivers and then the other one stopped working. Confirmed monitor and cable were not faulty using another system. Pried out the plug on the mobo and connected there. Screen now is responsive but only for the mouse cursor. Screen is completely black otherwise. Cursor looks like a windows cursor. After a normal start up period, cursor appears. Right click shows nothing. Ctrl + alt +delete does nothing, alt + esc, windows button, win + R all nothing. Win + ctrl + shift + B did not work when connected through graphics card and now makes cursor flash momentarily but I'm not using the graphics card at the moment so I'm not expecting too much change.

I don't have specs on hand. Mobo is Aorus. Graphics card is Radeon. Liquid cooling fluid temperature not elevated. The way it has presented is really strange. Any insight before I go to reseating?

Edit: Spammed F2 and Delete and I believe I triggered entering BIOS... but it's just a black screen with an um... A cursor prompt? Like an "\_". Which doesn't respond to any input from the keyboard.