They may increase productivity tremendously
They may only be common among experienced developers
They may be used at innovative startups
They may even be used at FAANGs
They need not cater to web developers only
They may help amazingly to learn coding
They may useful for a new programmer
The criteria is anything that has helped you from all diverse sectors of the industry.
I will hit ctrl+s after every few lines of code or so, allowing my "coding wingman" to tidy things up as I go. It releases me from caring, in the slightest, about formatting, so I'm focused entirely on writing syntactically valid code, and letting the formatter worry about the deterministic minutiae that is formatting.
The reason I like doing this in real-time rather than some `run formatting before committing` workflow is that I benefit instantly from tidy code as I'm writing it.
If you are _ever_ thinking about formatting and you spend time manipulating proper spacing and layout, semicolons, or other language-specific quirks yourself, you may be wasting time that could be spent on the non-trivial parts of writing code. Consider trying it!