Not that you want to be a test subject any longer; I am curious if the same issues happen with the Intel Core Ultra 1 Framework Laptop 13. If you were willing to return your AMD model at least the memory and SSD works between the two mainboards if you bought the DIY setup. I suspect the issue may not persist with the Intel chipset. There have been a number of oddities that only get brought up on AMD systems.
The latest consumer updates or whatever it is being called in Windows Update (The optional one that is not installed by default and you have to click on it for the “latest experience”) is not a final release; installing those gives users the false sense that it is fully tested and it is NOT. It is being used to expand their testbed before they push it as a full release.
Not saying that is the cause here, though with all the complexities of modern operating systems; sometimes less complication is more beneficial. I do not want extra features if it means having buggy symptoms of the core functionality of a device.