COVID-19 Outbreak Information Updates (Reboot) [over 150.000,000 US cases (est.), 6,422,520 US hospitilizations, 1,148,691 US deaths.]

And that's not including people who will come into the office if there is a specific meeting or function to attend and then head out right after.
This company isn't really checking if people are in the office and collaborating. The metric being used is badge-in rates. You could scan your badge at the front door, turn around and go home, and you would be counted as being badged-in. We don't badge-out, so there's no way to track how long an employee was at the office. If someone wanted to game it, they easily could.