Obsidian default startup location?

Hello, when opening Obsidian on my phone (android) I’d like Obsidian to startup showing my vault files. So basically Vault > Files.

How can I do this? Hopefully I’ve just missed the option somwhere.

Things I have tried

I’ve tried exploring the settings, almost every menu I could look within, no luck. I’ve tried searching on Google for other people with similar request. Searched the help docs for “startup” but no results.