sef% mdls /Applications/Google\ Chrome.app/Contents/Frameworks/Google\ Chrome\ Framework.framework/Versions/112.0.5615.137/Helpers/Google\ Chrome\ Helper.app
kMDItemFSContentChangeDate = 2023-04-17 23:59:16 +0000
kMDItemFSCreationDate = 2023-04-17 23:59:16 +0000
kMDItemFSCreatorCode = ""
kMDItemFSFinderFlags = 0
kMDItemFSHasCustomIcon = 0
kMDItemFSInvisible = 0
kMDItemFSIsExtensionHidden = 0
kMDItemFSIsStationery = 0
kMDItemFSLabel = 0
kMDItemFSName = "Google Chrome Helper.app"
kMDItemFSNodeCount = 1
kMDItemFSOwnerGroupID = 0
kMDItemFSOwnerUserID = 0
kMDItemFSSize = 1
kMDItemFSTypeCode = ""
sef% mdfind 'kMDItemFSName == "Google Chrome Helper.app"'
So there's a metadata key that has a value... but mdfind won't find it. I haven't tried writing a small program to see if it would find it yet, although I am somewhat curious if it would.