Oh yeah, that’s quite a lot.
Is there ever any flickering when no charger is connected? I’m not clear on that part.
What OS are you using?
Though, it does feel like a hardware issue to me. Have you contacted support? Note that it may take them longer than normal to get back to you at the moment. See Status of Framework Support (October 24th, 2023). If you haven’t contacted them yet, I’d give them as much information as possible in your initial message and provide your videos, to hopefully speed their assessment of the issue.