When logging in with WordPress
"Hello, hundred-san" in the upper right corner that it is PC screen will be displayed.

On the other hand, it doesn't exist when logging in with a smartphone.

How can I be displayed as "Hello ~ 's" even at the time of smartphone login if?

At first, I think it will change depending on the theme,
I changed it to some theme (from the beginning).
However, it does not seem to depend on the theme.

Supplemental information (FW/tool version etc.)

WordPress 5.3