Tem que adicionar o XYZ Tiles
Preencher com URLs:
Roadmap
http://mt0.google.com/vt/lyrs=m&hl=en&x={x}&y={y}&z={z}
http://mt0.google.com/vt/lyrs=m&hl=en&x={x}&y={y}&z={z}
Terrain
http://mt0.google.com/vt/lyrs=p&hl=en&x={x}&y={y}&z={z}
http://mt0.google.com/vt/lyrs=p&hl=en&x={x}&y={y}&z={z}
Altered roadmap
http://mt0.google.com/vt/lyrs=r&hl=en&x={x}&y={y}&z={z}
http://mt0.google.com/vt/lyrs=r&hl=en&x={x}&y={y}&z={z}
Satellite only
http://mt0.google.com/vt/lyrs=s&hl=en&x={x}&y={y}&z={z}
http://mt0.google.com/vt/lyrs=s&hl=en&x={x}&y={y}&z={z}
Terrain only
http://mt0.google.com/vt/lyrs=t&hl=en&x={x}&y={y}&z={z}
http://mt0.google.com/vt/lyrs=t&hl=en&x={x}&y={y}&z={z}
Hybrid
http://mt0.google.com/vt/lyrs=y&hl=en&x={x}&y={y}&z={z}
http://mt0.google.com/vt/lyrs=y&hl=en&x={x}&y={y}&z={z}
Para exportar para GeoTiff tem que clicar em cima da camada e ir em salvar como.