Almost certainly not. I'm fairly certain Google is licensing the imagery.

Pretty sure it’s just Landsat data, which is freely available. As is Sentinel, MODIS, and a number of other satellite platforms.

Google has been a pretty great pioneer on geospatial data science and visualization platforms, especially with Earth Engine (also free to use and allows you to access vast repositories of free geospatial data and use Googles computing resources to do data science with them).