Password Protect Mail App on Iphone

Hi,

Is there anyway I can password protect the mail app in my iphone (13 pro)? I mean the app itself.

When my iphone was robbed, they changed my passwords by accessing my e-mails. I would like to create a password for accessing the mail app so that every time someone clicks on the mail app, it will request a different password than the one I use for unlocking my phone.

This will prevent robbers accessing my e-mails and being able to reset my passwords.

If this function doesn’t exist, is there any way that I could suggest Apple to implement it? I am positive this is help millions of people world wide.

Thanks in advance!