Once I got Warcraft 3 working on Wine on Ubuntu 4.10, I quit Windows cold turkey.
Erase disk and install Ubuntu
I was ~18. The first “OS” I’ve used was a BASIC interpreter. Then DOS. Then Windows till Ubuntu 4.10. I’ve also used Debian concurrently here and there since then. I’ve tried various other Linux OSes for fun. I’ve used both Ubuntu and RHEL for work. Currently I run most of my machines on Ubuntu 22.04 LTS and done Debian. My work machine is on officially supported Ubuntu 20.04 LTS.