From the link in post 1
" This titanium saw chain features the Centri-Lube oil distribution system that pulls oil from the bar and distributes to the chain's rivets reducing stretch, limiting field adjustments, and extending the life of the saw chain."
I went on ebay and if excluding the word semi nothing comes up in a tri link and chisel specific chainsaw chain however the drive links on those Semi chisel S class chain listings do have oil distributing features absent in the pictures for this product. It is the tri link logo, appears so to me.
I don't know about Stihl PS chain being not available looks like it is $25 a loop if you buy two no shipping fee on ebay now. 62dl ps or ps3 take your choice.
I got $23.39 for a price after I put in a cart, contactless curbside delivery available. There may be emailed discount deal if you have their credit card or loyalty program.