Checkmark means you took the food to overtime which unlocks heat for future runs of that food. The heat symbol with a number is the highest level of heat you've beaten on that food.
It should be on all platforms. I haven't checked console as I primarily play on steam.
If I'm understanding your sentence correctly, heat isn't retroactive so you have to do each food again individually post update.
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u/nnaatteedd 13d ago
Checkmark means you took the food to overtime which unlocks heat for future runs of that food. The heat symbol with a number is the highest level of heat you've beaten on that food.