Extract only points inside polygon
Insert csv on map and polygons layer for selection.
take Select by Location tools and insert to processing.
Target layer is point (csv), Source Layer is Polygon layer.
Spatial selection for target layer feature(s) is completely contain the source layer feature selected.
And click apply.
Notes: You must configure porjection same this two layers.
I have two CSV file one contain points for polygon around 2000 point (lat, long). another file has more than 1 billion row ( id, lat, long). how to extract only the points intersect(inside) the polygon by pyspark