Profile: Dido

Problem: I would like to sort my View of Users by the last time they logged in, but I do not see an option to do so in my View settings.

Solution: Create a custom User field to store the user's last login time. Use some custom code in your functions.php file to update this value whenever a User logs in. In your View settings, sort on this custom field. If some users do not appear because they have not yet logged in, but you would like to see them in your View, you may manually set their last login value to "1" either in the wp-admin area or by manually entering this value into your database.

Relevant Documentation: http://www.wpbeginner.com/plugins/how-to-show-users-last-login-date-in-wordpress/
https://toolset.com/documentation/user-guides/user-fields/