I am not sure this is the right platform to ask this question. Please help me with the correct platform.

Today, One of my clients asked the below question.

I have login into the WordPress admin panel using the email id and
password shared by you. Now what I did, after login right clicks on the
page and click on inspect element then I search for my email id and I
found my email id(shared screenshot below). I don’t want to show my
email like this. eighter encrypt my email id or remove it from the
inspect element. This is a security issue.

I explained to him that this will only show to the login user not everyone on the website and then the argument started.

I believe that this is the WordPress default functionality. I want to know if is there any way to handle this issue.