> I am not familiar with chocolate doom what makes it better than any other doom source port?

The earliest doom variants once the source code released started adding features that weren't faithful to the original dos version 1.9.

Even Boom which was a pretty conservative codebase that focused on limit removal for level editing added weird things like weapon recoil pushing the player back when you shoot a weapon.

So chocolate doom's name is wordplay on "vanilla doom" - it's the version of doom we all played in the 90s just updated with current i/o libraries (libSDL) so it can run on modern platforms.