Here is a picture of my work area. I am one of those fortunate people who gets to work from home. Work sends me equipment, I work on it, then (usually) ship it back. :)
Aside from a lack of face to face social interaction, COVID-19 has barely altered my job flow at all.
I use Linux pretty much exclusively - I use Windows for those occasional things that absolutely require it. But I run Linux, and work on Linux embedded systems.
I have done some Android, QNX, and other OS’s too (except Windows), but the vast portion of my work is on and for Linux systems.
Hey, did I mention that I work on Linux? No? Hmm.