They can be easier to get started with than just installing Neovim from scratch. But they add their own complexities. First, you have to know that they exist, and pick one. Then you have to know how to configure them, they may have their own nuances about how things are done. Under the hood they're using all the same packages, so you'll need to learn how to configure those as well if you don't want the defaults.
I would say the distributions to make it extremely easy to get started with a functional IDE experience with LSP features. But they're not without their own learning curve.