Standard 3/8" chain and 3/8" LP share the same spacing between rivets- and that is IT.
Standard 3/8" chain is much wider, taller in the cutter profile, deeper in the drive links and made from heavier material.
Somewhere around 50-55cc is a good cut off point, below that will not run standard 3/8 worth a knob of goat poop- but will cut exceedingly well with the smaller profile narrower kerf of 38LP, above that cc rating has the grunt to pull the physically larger chain through wood.
Years ago wee saws ran 1/4" chain, slightly larger saws ran .325 and bigger saws in the 60cc plus range ran standard 3/8" or .404.
The Aliwhatever page you linked it for 3/8 LP= Low Pro which in turn = Low Profile, so it is like its big brother but with lower profile cutters, drive links and thinner lighter materials used to create a lower profile chain that is less demanding on smaller powerheads, for smaller timber and finer cuts.
