Did you read his emails?

> Anyone who wishes to do remote work must be in the office for a minimum (and I mean *minimum*) of 40 hours per week or depart Tesla. This is less than we ask of factory workers.

40 hours minimum means you only need to be there 40 hours, like most salaried full time jobs.

You're just sticking to semantics. It's well known all his companies require you to work more than 40 hours. Combine that with these emails, it's easy to understand what the expectations are.