I am so happy Cory is spelling this need of interoperability for me, without him I would be left feeling vaguely angry at things the way they go on the internet while now I have a much clearer idea.
The great news is that a bill named The ACCESS act was introduced to House Judiciary Committe in the US, “a bill to force interoperability on the biggest tech platforms,” more from Cory here: https://pluralistic.net/2021/06/12/access-act/
The proposed changes to the ACCESS act allow me to see in details the main problem of interop legislations, here https://pluralistic.net/2021/06/22/vapescreen/#improve-access
also Cory wrote unsurprisingly a SF story centered arounf interoperability: “Inside the Clock Tower: An Interoperability Story” https://digital-lab.consumerreports.org/2021/06/15/inside-the-clock-tower/