There is a feature of Teams that will allow you to record all members of a team who have attended a particular meeting as some point.
When in the team select show participants from the menu bar
At the right side of the screen the People window will appear
Click on the … menu at the top of the People window
Select Download attendance list
A excel file will be downloaded to your Download folder
Go into your download folder and the meetingAttendanceList.csv file will be there.
You will need to rename the list and move it somewhere else in your data storage folders.
It is best that you generate this file at the end of the meeting and it will record everyone, even those people who have left early.