Ive been watching this topic for about a week, and i'll be honest, I've no idea on half of what you're talking about.
However, I too have a redundant X96Q box, which i'd like to try and run linux so I can then try and run Home Assistant.
I flashed Armbian-unofficial_24.11.0-trunk_X96q_bookworm_current_6.6.44_mate_desktop.img to an SD card with Rufus and then again with Belena Etcher, but the TV box wont start with the SD card inserted, although when I say it doesnt boot.. I see nothing through HDMI and the LED remains red.
I know its a long shot.
But is it currently possible to run on the V4 board (image attached),
i see that youre all working hard in the background, so maybe something for me to come back and look at in a few weeks/months. ?