[KCD2] "The Hermit" quest has a canon ending.

At the end of "The Hermit" Henry has a choice between siding with the Hermit, or the knights trying to kill him.

Later on, the cutscene with Henry and Capon leaving a castle is pre-generated, and Henry in that scene is wearing a Hounskull helmet.

The only Hounskull helmet in the Trosky region by that point is worn by the Hermit.

Canon Henry helps defeat the Hermit.