Yep, I’m familiar with how Steam installs the “launcher”. Virtual memory is fine, one of the first things I messed around with. CPU 5600x, GPU 3070, PSU 850W, RAM 32gb. I have never used the cloud storage in Steam but I did delete the folder specified in the other thread you linked. Still CTD.
The Xbox app network settings say:
Internet: Connected
Xbox Live Services: Up and Running
NAT: Open
Server: Connected
Latency: 33 ms
Packet Loss: 0%