I am in the department that houses everything security related and was told by a person who actually reports this stuff...
While badge swipes ARE still being tracked - tracked as in making sure you are there 5 days/week, you trolling mongorals - but VPN usage is ALSO being monitored.
This is to prevent coffee badging, basically. When you go to an office, you have to connect to the building's/whatever area you are in WiFi before you can connect to VPN. Therefore your computer is assigned an internal Dell IP address. As soon as you connect to that, it starts getting logged. As soon as you disconnect and go home, that gets logged.
The minimum time they want is 1 hour of connectivity as of now.
Source - work with the guy who literally sends these reports up the chain.