There are a few plugins that upload pictures from the web into a link, but what about one that uploads from your own local files (especially on mobile)?
I’m not talking about linking local files directly from your computer, because the link wouldn’t work for any other device your vault is synced with. Once you choose the file you want locally, it will automatically copy the file into a pre-specified folder in your Vault and link it where your cursor is in your note.
An ‘open file dialog’ would have to appear, and I’m not sure how difficult this would be to do in an Obsidian plugin.