Sad to see a post by Mozilla only referencing Mac and Windows shortcuts to start the debugger. Most of the web developers I know are using Linux for web development, including javascript (some are using MacOS, none Windows). On Ubuntu, the debugger is started by using S (like Windows actually).
I don't know any Web developers using Linux on their desktops, as company policy requires Windows desktops. Linux is only used for Java based backends, when deploying into production. With .NET deployments being done on IIS, even with .NET Core. Some of the designers are using Photoshop on macOS. Anecdote data.
Linux isn't just a distribution platform, it's also sensibly a development platform. I rather work on the system I'm building for if and when possible.
Edit:
I use .NET Core and while I have done it from Windows most of my time in the past few months, I also do code in .NET Core from Mac and Ubuntu (more Ubuntu than Mac). It works good enough so long as you use Visual Studio Code for debugging.