Honestly? Because the last time I tried it, which was admittedly about a decade ago, it didn't work. People say RTFM, but TFM was just wrong/incomplete.

I would run into a show stopper problem, and the manual would say "follow these steps to make it work". Then, two steps in, the manual diverges from reality - doing what the manual says, would not lead to the machine state that the manual claims it would lead to.

Its not an issue that's unique to Debain. I tried a handful of distros and they all had the same kind of dealbreaker problems that could not be resolved by RTFM.

So is Arch btw

I use DOS but not MS-DOS because the MS actually stands for Microsoft. Plus it comes with Dark Mode built-in