Dear Corne Groenveld, I’m Henry and I want to share my insight about your issue.
It's a known issue and since you’ve already updated/reinstalled drivers, checked BIOS, and disabled Fast Startup, here are these steps you can try:
-  Cold Reboot – Shut down, remove power/battery, hold power 60s sec, then restart. (reddit), MediaTek Wi-Fi 6E MT7922 (RZ616) - Microsoft Q&A
- Reset BIOS – Restore defaults in BIOS and reboot. (MediaTek Wi-Fi 6E MT7922 (RZ616))
- USB Wi-Fi Adapter – Use a temporary USB adapter if the internal Wi-Fi still fails.
Some related document you can reference: Fix WiFi disconnects after Sleep Mode on Windows 11
These steps have helped other HP ProBook users fix the Code 10 issue.
Hope this helps you also.