Well. I have been getting random freezing / pauses of a minute or more since update 5. After some trouble shooting on my system it appears to be related to USB issues. Not USB controllers. The SIM would lock up at various times during a flight with different aircraft. It would not crash. Just freeze. Then a few minutes later it would continue working properly. Then I had one of my external USB drives (unaffiliated with FS2020) disconnect. Then FS2020 froze. So I did some testing. Disconnecting various USB devices and every time FS2020 would freeze.
So I decided to troubleshoot the USB issue. I disabled all power management options under the USB hubs NOT to allow Windows 10 to turn them off ever. I was also able to update my USB driver via the Windows 10 optional updates section.
So now after a week and hours of flying not one pause or freeze. Tried multiple aircraft in long and short flights.
Everything is working great again. Hope this helps someone else.