Tested with FB:

Create a mongodb database for 6.0.15 version, then upgrade it to 7.0.14-8. The database components were restarted during the upgrade. After some time, view the Components page. The Age field displayed for the components was 2 hours and 1 hour, though the actual time difference between them was only 1 minute. Please see the below screen shots

Waited for some time, but the time difference between components didn’t get corrected.