Getting some issues with Windows 10 since it updated to 2004. Get temporary freezing and with my old Thinkpad x201, Ethernet no longer works at all. Ended up ordering one of those Ehthernet to USB doggles from Amazon. Tempted to roll back.
Roll back, the update is buggy as expected and MS has been rolling out fix after fix to get it stable. OR start fresh and go right back to 1909 and only do the cumulative/security updates. I am not updating until end of the year or next year depending how far along their stability is.