Again, genuine question, what instability do you imply there is in the Windows environment? Since Win 10 I don't recall ever being fucked by updates (again, not including mandatory restarts).
What I don't like about Windows is the configuration. On Linux I can just copy over the configs and scripts from another system and that's usually that. On Windows, out of necessity, I've made a lengthy checklist of things I need to do on a new Windows machine in order to set it up to my needs. It's a pain, but once that's done I rarely have to fidget with it.
I think that my preferences have to do with getting older. When I started I happily spent days configuring Linux Desktop, compiling Gentoo with just the right flags and didn't get so upset when apt-get dist-upgrade fucked up my system. Now, I just don't care that much. I just want things to work so I can do work I want.
Just one thing to be extra clear about - I use Windows as a daily driver desktop. I'd never ever use Windows as a server, ever. I've had that experience once, in college, and I'll never ever make that mistake again ;)