I've been running Win10 since last July (it was an upgrade) and at first it was buggy; they have fixed a lot of the early problems.Thanks maybe it's time
And some of it was me getting used to using it.
Microsoft heard from me a LOT; both as an End User and as Registered Partner and part of the Development testing group.
(A LOT = at least every other day, in the beginning 2 or 3 times a day).
One of the biggest problems I ran into early was printing from Edge (the new browser).
They fixed that; and my scanner stopped working. Of course the scanner was a little <ahem> old and originally designed for Win98 (or was that Win95?)
The main cause is they've removed most of the ActiveX controls, Java and Flash.
I do have to admit, they did a good job on security (most of which I have bypassed)