It kinda sounds like you just need your cities to have a “VTOL only” policy. No need to worry about complicated flight paths and sudden changes of direction if the aircraft is only going (roughly) straight up or down. Of course, with or without this kind of policy, no sane city planner would put a hovercraft terminal below tree cover such that pedestrians could not see descending hovercraft (or descending hovercraft couldn’t see ascending ones) until the last minute. Fortunately, many city planners and city councils in real life are bat shit insane, so it’s not exactly an immersion-breaking decision to have that still be an element of your cities.
Sorry, that was me. I put it there. PFAS just tastes really good and I wanted some as a treat