How to get offline maps

I need a map to use in QGC.
Of course I know how to get a map at qgc.
But this is very slow.
Is it possible to download files from laptops and apply them to qgc?

I need a very large map.
Probably taking these tiles in gcs would take months…


If you need a very large map then only download a very low min/max zoom level so you don’t need massive megabytes of information.