Currently to switch account you have to open the app unlock it wait for it to load, click the profile icon and click the other account.
It could be so you could just double click the profile icon to cycle between the accounts.
And/or in the app context menu on the Home Screen there is a switch account button.
The business account also could be shown on the main page where all the account cards are shown. It isn’t part of the personal accounts but a quick look of the balance is helpful