Linux Ubuntu add new user

Use adduser, not useradd

sudo adduser john

or

sudo useradd -m john
sudo passwd john

If you want to force user change password on first login:

sudo chage -d 0 john

(“chage” is correct!)
https://phoenixnap.com/kb/useradd-vs-adduser
https://www.digitalocean.com/community/tutorials/how-to-add-and-delete-users-on-ubuntu-20-04