My ideal city of the future is a small walkable town with everything within a 15-20 minute walk, possibly a part of a conglomerate of towns that run trains or buses between them.
I currently live in one such historical town in Southern Europe that's protected by Unesco. The streets are so narrow that not only there's no public transport, all non-resident and non-delivery traffic is prohibited and there's no Uber even. And yet you have everything you need for life and work within a 15-20 minute walk max. More for remote work, obviously.
An ideal city of the future doesn't need to be medieval but maybe we should go back to a city planning concept that is made for humans and not cars. And you know, narrow pedestrian streets are totally fine, they are cute!