Current problem
The left-aligned community list is not particularly ergonomic on devices with larger screens being held with one hand.
Proposed change
An option to display the community list as a centered grid, similarly to a mobile home-screen.
Platform
Android, iOS
Additional information
Another potential solution is an option to choose which side of the screen the list aligns to, but I believe for mobile UI specifically, it would be more comfortable to have a layout that is optimized for mobile navigation.