Vim has no unified plugin structure, there are several plugin manager packages (often installed via git clone). I personally use vim-plug[i] which is more on the minimal side, but there are others like pathogen or vundle. No real centralized plugin repository like melpa, I don't think one of the plugin managers I've used had some kind of common install-screen. You mostly enter the github address and execute the package update vimscript. I've seen more Emacs info packages than :help docs, but in most cases I'm browsing the githup README.md/.org anyways.
I create a ".vim\pack\foo\start\" folder and git clone plugins there.
Invoking ":helptags .vim\pack\foo\start\somenewplugin\docs" for a plugin makes the docs available to the :h and :helpgrep commands.
If configurability is a burden on you just quit Emacs because that's its biggest point which makes it a very productive tool. And just like a sponge won't clean your tabletop by itself if you don't put soap on it and rub it to the tabletop, Emacs can't do anything for you if you don't learn how to use it and actually use it.
C-h i: info manuals
C-h ?: help for help
C-h F: help for commands
C-h v: help for variables
C-h f: help for functions
C-h m: help for minor modes
That's a lot of help if you ask me!