Hahaha. Have you tried to write a piece of mathematics in MS Word? I did. It's a torture I wouldn't wish on anyone I know.

Mathematicians are all about convenience; so much so that proprietary LaTeX Editors were quite popular before FOSS caught up (remember WinEdt?).

But LaTeX itself - it's the most convenient tool to write and share mathematics that's ever been made. It's unsurpassed. It's required if you want to publish, because all the journals use LaTeX, and most math books are made with LaTeX.

It's so good that people will literally think you are an idiot if you are not using it[1] and won't believe your results.

And ArXiV, have you heard of ArXiV? No LaTeX, no ArXiV.

And trust me, most mathematicians don't care much about FOSS. But they care about not spending too much effort on making their results presentable and shareable. LaTeX -> PDF is the path of least resistance.

[1]https://www.scottaaronson.com/blog/?p=304

If you're working with embedded Linux, Visual Studio isn't going to be much help for debugging on a target.

>Nobody would be LaTeXing instead of using MS Word or Adobe Illustrator.

LaTeX does some things much better than Word, and Illustrator is very expensive.

>GIMP isn't as good as Photoshop (if I believe what people say), yet people still use it.

GIMP is free. Photoshop is not.

You seem to be assuming the people have unlimited money to purchase software licenses. Many free software programs are used not because they're better, but just because they're free and good enough. If I just want to crop and rescale some photos or something, why on earth would I buy a Photoshop license when I can just download and use GIMP for free?

If Visual Studio ran on Linux, would anybody bother with gdb? Currently, the second-highest voted UserVoice issue for Visual Studio is people asking for a Linux version (and rather hilariously not understanding what a colossal rewrite that would entail...)

https://visualstudio.uservoice.com/forums/121579-visual-stud...

> Nobody would be LaTeXing instead of using MS Word or Adobe Illustrator.

LaTeX might just be easier than trying to typeset something reliably in Word. I know I always wrote in plain-text and then did a final pass to paste and format it into Word immediately before printing.

> GIMP isn't as good as Photoshop (if I believe what people say), yet people still use it.

Photoshop is stupidly expensive still, and cracking software has fallen out of favor

I mean, I debug with lldb which is free and open. Sure, I do the debugging through the non-free(-as-in-freedom), non-open Xcode, but that's because Xcode lets me harness the power of lldb in a manner that suits me.

There's nothing stopping free and open software projects from being delivered in a user-friendly manner. I'm sure there are plenty of people using gdb and lldb with fully-free and fully-open editors and IDEs.

Sometimes it just takes a mindset adjustment to see that what is most often considered inconvenient, and that followers of free software doctrines must begrudgingly accept as their lot, can actually be delivered in a user-friendly manner that meets the proprietary-software-users' expectations.