If it's any consolation, BillCat1, my Dell Inspiron laptop is still attempting and failing to install the 2021-07 Cumulative Update on a daily basis. Today when my system finally was booted up I started Resource Monitor (resmon.exe) to see what was hogging so much of my resources. Resource Monitor loaded, displayed its tables and graphs, but none of the text ever appeared... so I could never tell which processes were which. But that is how badly drained the system resources are by whatever Windows Update/Windows Update Medic is doing in response to that failed update -- I guess so badly drained that ResMon.exe can't even load a font to display text.
Do you know what it's like trying to use a system that is so taxed that apps are failing to load fonts? It's really bad.