Wow, I am guilty of a lot of these, and certainly good to know, as fridge space is generally limited...

https://www.editorchoice.com/foods-never-refridgerate/

in a nutshell:

Potatoes
bananas
whole melons
basil
onions
coffee
garlic
hot sauces
bread
oils
honey
pumpkin
apricots, kiwi, peaches, mangoes
peanut butter
flour
pickles
soya sauce
avocado
jerky
tomatoes
salad (dressed)
peppers
ketchup
pears
canned tuna
dried spices
cucumbers
apples
carrots
cereal
butternut squash
tropical fruit
butter
yogurt
cheese
citrus fruits
chocolate
jam/jelly
salad dressing (oil based)
eggplant
pineapple
papaya
sweet potato
nuts
chocolate spread (Nutella)
cake (non frosted
berries
dried fruit
mint
mustard
canned coconut milk
protein powder
red wine
grapes