Battery swap stations have happened.
NIO has done over 4 million battery swaps: https://www.carscoops.com/2021/09/nio-customers-have-perform...
NIO is expanding their battery swap stations to Europe: https://www.carscoops.com/2021/10/nio-brings-battery-swappin...
Gogoro has done over 200 million battery swaps: https://www.gogoro.com/news/400k-gogoro-network-subscribers/
Gogoro is expanding their battery swap network: https://thedriven.io/2021/10/12/taiwans-gogoro-launches-batt...