My understanding is that they’re mostly not installing much at all. That’s the problem. As noted in the below article, the public charging companies like Chargepoint aren’t going into multifamily residential buildings for exactly the reasons described upthread - it’s expensive to put a smart charging station into a place where you’ll only get a single, overnight charge. So EV charging is mostly not available in multi-family buildings, which is why even controlling for income EV adoption among renters is a fraction of that for SFH residents.
One potential described solution is the one I discussed - “dumb” chargers with assigned parking spaces that are leased to the owner, which recreates the SFH charging experience. The problem is that’s expensive, and probably not scalable. It also describes the problem with a small number of “dumb but shared” charging stations, which is that people don’t disconnect. Building managers can fine the residents, as described in the article - but I can’t see that being a practical solution that could be scaled either, since neither the landlords nor tenants will find that enjoyable.
I mean, it may end up being that the equilibrium outcome is that there isn’t much multifamily residential charging: pure EV’s remain only a segment of the market, and end up being owned almost entirely by people who are either in SFH or have access to charging at work.