I can see how the functionality to view your check deposit would be beneficial to your business, HC1234.
As of now, this feature isn't available in QuickBooks Online. Once you deposited the check, you’ll only receive an email when your bank accepts it and deposit your funds.
I encourage sending feedback directly to our Product Development team. This helps us improve the features of the program. I'll show you how:
Access your QuickBooks Online account via browser.
Go to the Gear menu and then select Feedback.
Type in your feature request in the description box.
Once done, click on Next.
Additionally, I've added these articles that'll help you learn more about using mobile check deposit to add funds into QuickBooks Checking: