Currently I can deep link to headlines inside pages. That’s not as fine grained as Roam makes linking (where I can link to any “paragraph” (block)), but I find it ok for now
Maybe even better in the long run because it makes you think a little bit more about structure, but not too much. I just started with Obsidian and need to play around with it.
However: Headlines are no first class citizens in search during linking. After [[ only page titles appear. That means I have to know in which page a certain headline is defined.
To me that makes easy interconnection between thoughts harder than necessary.
Why not show page names and headlines as search results for auto completion? Or if I know that I’m looking for a headline, why not accept a # as the first character and then only show page headlines across pages?
In Roam link search results after [[ are across page names and blocks. Very convenient!