ThinkPad (AMD) becomes unresponsive to input

Agreed. My only caution is wondering how many of the prior reports would indicate if the underlying system is still operating. It could be possible more than one bug exists (visual freezes vs. crashes) and some of the reports are getting mixed up, complicating narrowing it. I suppose it would also be reasonable that one bug may manifest in slightly different ways on different chipsets.

Do you have trackpad? What about the internal keyboard?

It has a trackpad. I have not tried using it during a hang. I can try next time if it will help.

The keyboard is integrated into the laptop board (not external). Not sure how to confirm if it’s still operating. Best I may be able to do there is indicate if the “Caps Lock” key still lights up without visual feedback.