It's easy to be pleased considering the OS jump I've done. I do have issues in Event Viewer to research. Already two have been solved. This one shows up often in Microsoft-Windows-Diagnostics-Performance/Operational-Performance & will take a lot of work...
The Desktop Window Manager is experiencing heavy resource contention.
Reason : CPU resources are over-utilized.
Diagnosis : A sharp degradation in Desktop Window Manager responsiveness was observed.
...Apparently, Dell &/or MS has put a trillion apps into Startup & into Services: 71 background processes are running right now & 95 services!
OK, you'll be seeing threads about them, but there'll be something else first. Thanks for the welcome mat. Let's not busy up another's thread. OK, bye.