Backup is built
directly into Windows 10 - Settings - Backup - look for Backup and Restore Windows 7, follow the links to create a system image. You can image the partitions, drives, multiple drives, entire multi drive systems. Has never once failed for me to restore a system. This by far the easiest and fastest solution from the Desktop to being backed up in 5 clicks. If you want something similar to Time Machine opt for the MS File History, although I personally opt for system images.
Migration has always been a mixed bag and one I personally avoid regardless of OS. Far preferring to set the computer up from scratch and then allow working data to sync via the Cloud or external drive, this way one does not carry any inconsistencies to the new system.
Never had any issue with W10 and external displays, projectors etc. equally I avoid dongles with logic as in general they only serve to add another layer of complexity (rMB & MBP being a prime examples). I've had issue with Apple's hardware and OS thx to dongles, no more period, simply wasting my time.
Scaling remains to be problematic under W10, requiring user logout, restarts. if you require 4K I believe it's better to have a notebook that is natively has a 4K display, this way when one connects a 4K external lees issue is likely to occur. As for the UI as the scaling is massively different to macOS it's very much on the developer to get it right.
For my professional need Windows 10 is simply more performant and stable, ignore the comments regarding W10 multiple reboots as this is controllable at the user level, even with W10 Home. Microsoft has as vastly larger threat profile and resultantly is far more aggressive in issuing updates than Apple needs to be.
Set the network connection to "Metered" this will halt all updates barring those that are absolutely critical. The downside is that you will now need to manual instigate MS Store and Office updates etc. My profession is a quality engineer within heavy industry requiring 4-6 weeks on site representing the client,
never once has my Windows 10 systems inadvertently rebooted, those saying different
simply didn't take the time to understand how the OS operates, plain and simple.
To put things into perspective for me to fail to deliver to the client costs more than Apple's finest portable on a daily basis, hence why I expect far more not less, unfortunately now has little to no regard for it's professional users, just Starbucks specials if you will...
Q-6