Wow, with that amount of driving you're going to be stuck with ICE cars for a while. I suspect you're a significant outlier though in terms of long trips per month.

With a 22kW (default European 3-phase) charger, it would be easy to have a full battery every morning. A large EV charges from empty to full in 5-8 hours.

In some places 3-phase power is very common (e.g. my small apartment in Copenhagen has a 3-phase supply), though in the UK it's less common. The upgrade might be £1000, or considerably more.

With 7kW (1-phase) it will be OK for a lot of trips — charging in 11-12 hours. This is more power than a normal domestic socket provides. In some countries there's a higher-power socket in the garage already, otherwise it's something the electrician needs to install.

A normal domestic socket is around 3kW.

Maybe, but I've got quite a few friends in that do similar amounts of driving so I might not be as far out there as you think. But I agree we are at the higher end.