>Go for a walk every day, and occasionally make your walk to an ATM?
There are workarounds, but it sounds annoying and a burden. What if the closest bank branch is an hour on foot away? Or the OP lives in a rural place and it's half an hour drive? I don't have this problem since my bank works with graphene, but I would reconsider using it if most applications I use refused to load.
You can also contact your bank and tell them that you want to be able to deposit checks via the Web site.
If enough people do this, and don't use the overly-proprietary app, the bank might listen.