I use Obsidian git on PC, and this workaround (since the plugin doesn't support mobile) to seamlessly* sync my notes to and from my phone. Using these instructions you create an automation for pulling every time you open Obsidian, and pushing every time you close it.
* you can still get merge conflicts...
- Install Tasker.
- Install Termux.
- Install Termux tasker plugin.
- Open Termux and write
termux-setup-storage
, give it permissions.