It was PHP and Laravel.
I started doing fancier things with websockets, redis, cronjobs etc.
Anything “designed for” laravel hosting wasn’t cheap. So, I learned how to get a VM going and set it up for webhosting.
Windows is still my daily driver due to Office, Visual Studio and gaming.
But I have a bunch of VMs and servers, and they are all Debian.
I enjoy Linux, but I haven’t gone whole-hog into a desktop environment or whatever. Everything has been CLI based