Hello Sir,
I am an SCCM expert, and I have an on-prem system working for me right now.
You need to deploy ADR for software updates (windows, Office, security updates).
I can manage these rules for you and deploy any Task Sequences for other needs in your environment.
I will also check the errors and try to remediate them.
We can have a chat to discuss more about your issues.
Best Regards,
Sia s.