My fridge is designed to store food and has multiple shelves and drawers. My counters are a flat surface area and I’d rather keep them clear for active uses like cutting, prepping, etc.
There are also appliances competing for space on the counter like coffee machines
I guess there’s the pantry but it’s also just that I’m used to keeping them in the fridge and it’s not like it hurts them to go in the fridge.
Anyway, point is it’s really not that weird to keep them in the fridge