Somewhere between 1500-2000GB depending on the month. When there's no games/shows to stream/download, it's usually around 1500GB but during holiday season, it's usually around 1900-2000GB. Lowest I have seen is 1000GB but that's usually if we plan a trip for 2 weeks.
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850