I also face this issue and this one is a huge nobrainer for me.
In Typora all assets went to .assets relatively linked from the current edited file.
Images are referenced as
As you notice in the graph view. Obsidian does not understand that the links are image links.
Also all referenced image files that currently reside in the .assets folder will not be displayed as Obsidian does not find the file:
I changed this to
assets and it works but then the folder is displayed.
Hopefully you understand my point in requiring such feature as it helps for better organisation of assets and data files.