It depends on ur supply and also how much you want to store, as well as how much freezer space you have. I started using home freezer first and ended up buying a 90L freezer once my supply rly increased and i no longer have enough storage to store in home freezer. If you’re keeping in fridge section, rmb you can only keep for 4 days! So make sure you use up the milk by then or else do freeze it!
It depends on your supply. For me I don’t have to freeze them, my baby is always drink bm produced within 24 hours so I simply stored them in the fridge.