PowerApps Home Page greeting displays "Hi LastName"

[starwispy]

My company uses Last Name, First Name syntax in our profiles.  This means that the Title under Home page of the PowerApps login screen displays "Hi LastName".  This is not user-friendly and does not provide the welcoming experience that I'm sure Microsoft were going for. Can you please provide a simple way to customise the Home Screen of PowerApps, or find a more intuitive way to implement that feature (or remove the greeting altogether)?  Thank you.