There's a reason all the EVTOL startups show individual vehicles landing in pristine fields, and it's the same reason car advertisements show one car on a closed course instead of I-95 at 3pm on a Friday
Certainly there'd be density _at_ take-off and landing, but even that's manageable by having e.g. arrival/departure locations at multiple heights.
It also seems vanishingly unlikely (at this point) that we'd have EVTOL that's not fully autonomous, further reducing the odds of this - ~perfect and coordinated driving, as well as foreknowledge of what's happening between you and the arrival location drastically reduces traffic.
On top of that, small VTOL craft that can hover and would be at lower speeds closer in (esp. autonomously flown) would just need less mutual clearance compared to jets, which also have an altitude band they have to stay in, as well as no ability to slow to a crawl and coordinate finely.
Any aircraft you imagine will circle at landing and possibly loiter for minutes while waiting for their turn at using the airspace. (Edit0:See helicopters)
Building an open skyscraper for aircraft to land on will not save you since crafts will lockdown a large part of the building to land/depart safely. And it's not clear to me that it would be profitable.
Then many other problems about energy density and aircraft weight limiting the whole scope of who would possibly use those crafts.
Have a good one!
Edit1: I don't know for you, but my city doesn't have enough parking for cars. I'd be surprised if there were enough parking for EVTOL everywhere - you could very well need to loiter waiting for a spot to open, could need emergency landing if you run out of power, many many un-perfect things that make the card castle fall apart