What is the "Enter password" when logging into mysql?

Question

MySQL

Installed mysql on a freshly installed ubuntu 20.04 and configured mysql_secure_installation
Since it mysql -u root -pdoesn't allow me to login to mysql before.

Therefore, I enter mysql like this:
sudo mysql -u root -p

And I get:
[sudo] password for my_accaunt_ubuntu:
I enter the password of my ubuntu user.

And then it appears:
Enter password:

And so that I don’t write it in Enter password, it enters mysql.

This is fine?