Hi Julian,
About your questions
You’ve been on 5.5.4 thorughout - since it last worked and now -> Yes
Your Linux_SDK installed version has always been v23_clang-18.1.0-rockylinux8 -> Yes
I suspect you’ve a new windows update? Can you confirm your version? -> Yes
Edition: Win 11 Pro
Version: 24H2
Build 26100.4349
and the last update was the KB5060842
Yes, the problem is very similar to the one described in the link.
Regards