Same here I'm using Windows 7 on my Laptop until I bought a new PC installed with W10 the only problem with using Windows 10 in my experience using it is that the appearance is totally different and I have experience trying to look for a control panel and I can't find it on the settings, unlike W7 you can easily find the control panel.
For me, the transition was quite easy, everything I could not find directly I simply found using the search option located next to the start button. I'm not sure if there are any differences in the W10 versions and if they come with different visual settings, but unlike the new OS, a much better user experience brought me a new computer with twice as much RAM and a much better processor.
One of the biggest reasons for some people is the controversies surrounding Win10 such as the anti-privacy hazards and backdoors Microsoft inserted in it.
It is possible that there are such users, but I believe that most do not value their privacy to the extent that they would choose an outdated OS with which that privacy would allegedly be less compromised. But there is no doubt that the W10 is a real spy compared to its older brothers because if it can be used for free, the company charges for it in some other way.
