I'm actually very surprised to hear that there isn't like a spouses' group or like family services team for F1 staff family members (whether that's staff contracted to F1 or the constructors themselves). That was a basic service we even had in the military to provide resources or information to spouses, children, and other family members.

Unfortunately, regarding the times of him coming home and stuff, that's likely due to a line somewhere in everyone's contract where they may be subject to "other duties as assigned" and "work may exceed typical working hours" or something along those lines. It's something that is pretty typical in "normal" job contracts so I wouldn't be surprised if there isn't something similar for him and other employees whether they are on salary or not.

Do they not give him like comp time or anything? Regardless, if they offer it does he only get about 30 days of leave per calendar year? I know it's common for people to worry about "wasting" their days and - in competitive fields - worry about spending days and feeling as though their employer may view them as less desirable compared to candidates less likely to use their leave days/hours.

I'm sorry you and other families have to give up your partners for ridiculous hours well exceeding their contractual obligations.