U4025QW, TB4 no video after M3T102 firmware, #5

I tried all the solutions here, multiple times. I see the mouse and keyboard working on the laptop but no video. It worked so smoothly with the previous firmware. This is a huge mess right now. Is there any way to get back to the M3T101 firmware? Is there a new firmware on the horizon tackling this? Or is this simply the status quo now? This completely blocks me from working with the monitor.