Where, and when, did you start using Linux? Where are you now?
I started fairly recently (probably somewhere between nine and seven years ago; time isn’t my strong suit, cut me some slack) on Debian. Now I’m on Arch Linux.
Startet using Linux in 1999. Then I did a lot of distro hopping:
Redhat
Suse Linux
Gentoo
Sabayon Linux
Debian
Kdenlive
Arch
Ubuntu Studio
Fedora
Fedora Silverblue
since 2017 NixOS
NixOS feels very contemporary and will stay a while. It is very advanced and usable in many diverse environments.
In the past I did learn a lot installing and maintaining Debian and Arch – which has a great community.