Does The Stray Chest spawn more vs. other quests

[ossmpossm]

on fort finch? will there ever be high level monsters like mummies or skeletons, after Every Load? or can i expect it to be more like the holidays, with and when i Return To Squire's Knoll ?/.

[ossmpossm]

and, further, Here, what are quests like in comparison to higher level difficulties, when i am trying to fight through Invasions (?)