I'm a web developer for a small marketing firm. I know HTML, CSS, PHP and Javascript
Regarding frameworks, my favorites have been Vue and Meteor for JS, and Laravel for PHP. Laravel is currently my favorite toy; I play with it whenever I have the chance.
I primarily work in Windows 10 and have recently started using WSL for local dev. But being a Kubuntu fanboy at heart, I would switch my work machine to it in a heartbeat given the opportunity.
My favorite editor used to be Atom; I used it since Alpha and had stuck with it for a few years, even into the mass exodus to VS Code. I eventually did switch to Code though. The performance difference was too great to ignore, and nearly everything I liked about Atom was implemented similarly enough in Code to make the transition not so difficult.