I'd speculate some combination of control over employees (poor management practices, etc) and making use of owned land/offices that are difficult to sell otherwise. Not much else makes sense to me, especially for tech companies where nearly the entire job exists in virtual space of some kind - no wrenches to turn.
Edit: Someone else suggested a way to "lay off" folks by having them voluntarily leave the job to avoid the return to office. That also sounds pretty plausible to me with the extent to which companies are starting to squeeze with what feels like an incoming recession period.
In the front, yes - but knowing how much your rear might be sticking out is another story. That's tough to judge with rear-view and side-view mirrors only.
Maybe it's different elsewhere but at least in the Midwest US we have a range of different length parking spots, from very short to long, so it's habit to pull as far forward as possible to ensure you aren't sticking out into the aisle.
The courteous folks hop back in and reposition if they're parked funky, but those types can be far and between.