Use case or problem
Vim mode is useless on mobile version because there is no way out of insert mode without an external keyboard. I am starting to use more Obsidian on my mobile out on the street and selecting text without vim is very hard on a touchpad
Proposed solution
I suggest devs take a look at Droidvim as it adds two rows of keys on top of usual Gboard keyboard and makes using vim possible without the need to mess with keyboard layout or installing a third party app.
Thanks