Uhhhh it does?
https://kde.org/content/plasma-desktop/plasma-launcher.png
https://laptopmedia.com/wp-content/uploads/2015/07/win10-sta...
https://pointieststick.com/wp-content/uploads/2023/01/hebrew...
https://platform.theverge.com/wp-content/uploads/sites/2/cho...
I like KDE a lot, and yes you can configure it to look and act just abut any way you like, but it's default definitely has a lot in common with Windows.
It has been over 10 years since I stopped being a KDE fanboy and became just a regular fan, but I remember that during my flame-war era, many features from KDE would often appear in Mac OS and Windows and their most popular applications (such as iTunes).
These days I don't care so much, I use KDE and I'm too old to switch.
Especially that start menu with the tiles on windows is very different (and horrible because the default doesn't look like that screenshot, it's filled with ads, news and other crap)