According to google sheets api documentation, LocationMatchingStrategy can be one of EXACT or INTERSECTING.
Determines how this lookup matches the location. If this field is specified as EXACT, only developer metadata associated on the exact location specified is matched. If this field is specified to INTERSECTING, developer metadata associated on intersecting locations is also matched. If left unspecified, this field assumes a default value of INTERSECTING. If this field is specified, a metadataLocation must also be specified.
However, I'm unable to understand this statement. What is "developer metadata associated with exact location"? How this matching works?