Can you deposit checks from the webapp? That is the feature most often missing in banking webapps. It isn't something I need often, fortunately.
The majority of the world don’t do this anymore.
Asking for a cheque deposit is like asking for a car with a hand crank. People outside USA are going to look at you like on a member of a Sentinel tribe.
No you cannot, as of yesterday. The mobile app doesn't even allow your choice of camera app, to avoid even the tiny amount of fraud that doing so might enable.