No ads, no spyware, no demos, as all software is fully functional and free. Also no subscriptions, no license fees, no unwanted communications.
A KDE-based system includes lots of customisation possibilities (i.e. you can change practically everything in you system and desktop environment), but is also perfectly functional as is, even if you do not change a thing.
KDE software will work on most hardware, even on older computers.
Note that a KDE system is a different experience from Windows. There are different apps -- instead of Microsoft Office, you would use LibreOffice, for example; instead of Photoshop, you would use Krita or GIMP, etc.. This requires you approach KDE system and its Plasma desktop with an open mind.
On the other hand, KDE brings you lots of interesting features you probably did not think possible, like near perfect integration between your phone and your desktop, plenty of tools to control your system, and easy and safe management of all the apps on your system.
Also, bear in mind that it is created by a community of users, not a company. We are not in it to make money off of you. In fact the community has organised itself as a non-profit charity. It is worth pointing out there is a strong community of teachers within the KDE community, as we produce quite a lot of educational software, including GCompris:
Or just ask. We will be happy to guide you in your discovery of KDE, will be happy to answer your questions, and will appreciate your feedback and thoughts.
No ads, no spyware, no demos, as all software is fully functional and free. Also no subscriptions, no license fees, no unwanted communications.
A KDE-based system includes lots of customization possibilities (i.e. you can change practically everything in you system and desktop environment), but is also perfectly functional as is, even if you do not change a thing.
KDE software will work on most hardware, even on old, under-powered computers.