Both are up to date. I actually suspect this is an issue caused by the newer firmware, but there is only one firmware version available when I looked into it.
I ended up working around the problem, and just using the old NVME as the OS drive and using hibernate rather than sleep. It seems something about going into standby causes the problem, and the system going “cold” by parking onto the disk doesn’t cause the same issue.
I’ve said it before, just… give me a Steam Deck without the screen, and I’ll buy it. I need that layout, it’s the perfect combination of features for me.
If I could be greedy, an extra set of back paddles and some extra “spare” buttons would be nice for flight/space sim games.