@ddljohn-- That's right.
No doubt, the gallbladder plays a role in digestion but it's not as vital as other digestive organs. If it was vital, people wouldn't be able to survive after it is removed.
My sister is a doctor and she told me that one can eat fats after gallbladder removal, but not all. If the liver produces enough bile on its own to digest the fats that are consumed, there won't be digestive troubles. She recommends those without gallbladder to eat foods with healthy fats like eggs, butter and liver. She also recommends supplementing with bile salts, or bitters when necessary to aid bile production.
Of course, you should talk to your doctor about it before implementing any of these tips.