Typically the right segment can be used for cold storage and the part on the left can be utilized as the freezer.
Side by side or french doors.
Virtually all side by side refrigerators are the same design.
By splitting things down.
A side by side fridge has two full length doors that open out and away from one another.
A side by side will give you more interior storage than a comparable french door model about 20 more.
The freezer as far as we can determine is always on the left and the fridge is always on the right.
Side by side and french door fridges both tend to be good picks for narrow kitchens since neither one requires you to open a door that runs the full width of the fridge.
However more space is allocated to the freezer leaving around 25 less space for the refrigerated section.