So this is the "Link to Windows" item in the phone's pull-down menu?
SO, I have a Samsung (Galaxy A30s) with the feature.
Frankly, I haven't tried it and just had a look now to see what needs to be done - but I kinda don't want to go there - for a range of reasons - the phone being such a transactional device for me (screaming wobblies in the brain) so to add using the PC I am sitting at, viewed on the phone/phone viewed on the PC - doesn't compute in that range of activities. Personally don't have a use for transfering files between the two either - but, then, I am no longer a "road-warrior"; and there is drop box etc, anyway.
What that all means is my question is : Why?
Looking at what the Samsung/Microsoft sites say about the functionality - I'm not really interested in using those - it doesn't say whether its bluetooth or direct WIFI or what - so it will probably depend on the PC having bluetooth (don't know how many machines have that hardware installed - it would have to be "recent" machine I suppose).
So, sorry, but I don't know how well it works - but would be interested to know the experiences of others who try it, anyway.
OH and, I'm not a registered Microsoft Account user - and don't need to be.