Not very easy but not very hard either. Obsidian works with .md files they have close syntaxes to .org files that orgmode works with, but you will have to convert them.
I would also suggest searching for some neovim plugins working with .md files. That will allow you to directly import your files. Something like this maybe?
I wonder if I can just straight up import my obsidian vault and have it work
You can convert all your markdown files to org in one go using pandoc.
Not very easy but not very hard either. Obsidian works with .md files they have close syntaxes to .org files that orgmode works with, but you will have to convert them.
I would also suggest searching for some neovim plugins working with .md files. That will allow you to directly import your files. Something like this maybe?