Scent Grenades have often been confusing and unintuitive to use. They are now reworked to be Decoy Grenades, You throw them, and after a short delay creatures are drawn to the location of the Decoy.
It should now be much simpler to use.
Minor Update
Source: Steam Community (opens in a new tab)
Build and release context
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.