Echo people saying go to a common starter distro instead of a more esoteric one. Another starter tip if you want to learn the ecosystem deeply is to find good sources of documentation.

The man command is always useful, but for more general topics you can start looking with your distros help pages -> package documentation -> Alternate distro wiki. Essentially start with the documentation most relevant to your setup, which will often be your distros own guides. If your answer isn’t there you can check upstream with the packages themselves. Many have github/sourceforge pages with good info. If you still can’t find your answers several distros have documentation pages that are really really useful even when you’re on different distros. The Arch wiki is for me the defining feature of the distro, and almost any answer to a Linux question can be found between the Arch Wiki and the Gentoo Wiki if you read closely.