I believe you, just suggesting that the issue may not be quite as general. I have a 64GB Studio M1 Max, so the years of hardware/firmware differences between us may be relevant as well. Hope you find a solution!

It didn't happen to me before the update, so I suspect it must be something about the update or how it interacts with the software on my system. Still, it's one of those issues I have no hope of seeing solved, because at this rate nobody doing development at Apple is actually going to leave a Mac running for days on end...