Please follow the below instructions provided to export all the users and you can refer to the Last Sign-In column from the report to get the Last Sign-In details of all the users:

Please go to Settings>>Users>>Export>>Current Page and please refer Last Sign-In column from the downloaded report  as shown below:



Please note that the last login details may not be the real-time information as we do not record the daily activities of the users in our log yet hence, it is likely that people are accessing the site but may not be logging out daily. If users do not log out, the application always shows the last formal login they did anytime in the past.