Here's what I use on my personal computer!
I run Pop!_OS 20.10 on my main laptop.
It's based on Ubuntu and it's the fastest and most productive Linux distribution that I've ever used!
My main code editor. It's has an easy to use layout, very customisable and is widely supported!
I use this for Version control
Thanks to Git, I can code features in parallel using feature branches.
If something goes wrong with my code, I can easily revert back to a working state.
I love the enhancements that it adds to my terminal!:
- Developer environement information
- Current git status
- and more...
Not only is it an excellent browser, I'm also a big fan of the developer tool sections available there:
- Accessibility: Makes it much easier to test for WCAG requirements
Also, it's one of the only browsers that reads that gets the "prefers-color-scheme" value from the Pop!_OS, (As far as I'm aware)
I make mockups and protoypes here before I start writign code that involves a UI.
By the way, it's free and works on all operating systems since it's browser-based!
I hope you've found some tools that help you with your work.