How can I get parts in position with Collision Fidelity enabled?

I tried to get parts in position using workspace:GetPartBoundsInBox().
But this method ignores Collision Fidelity of mesh parts.
Is there any alternative method to get parts in position?

have you tried WorldRoot:GetPartsInPart ? Not sure if it is affected by collision fidelity, they do note it is expensive due to it’s accuracy though.

Beware that this spatial query function considers the exact volume occupied by the given part using a full geometric collision check. A concave/hollow part won’t match queried parts within it unless they actually overlap/touch such a part. For simpler volumes, consider using GetPartBoundsInBox or GetPartBoundsInRadius instead, as they are faster at the cost of being less accurate.