For anybody wondering, in MS Flight Simulator 2020, you’d stream some of the world imagery - but there was a full offline copy of Earth and airports in the install, and you’d download all airplanes and airports on first start. The game was playable offline. With MSFS 2024 they moved the client to be ‘thin’, where every plane, airport etc is streamed in real time. It doesn’t work. In the UK the Akamai cache is fine, but relies on Azure Front Door hosted backend - which usually times out.