As stated, I'll exit the 'starter cave' and I'll get the pop-ups for "Survival Mode" (I select 'no' as I have iNeed and Frostfall instead), and "Religion" (the 'Wintersun' mod) - though the order varies. The crash isn't instantaneous after that, but moving (even just 'mouselook') brings it on quicker.
I have tested coc-ing to an interior cell straight from the main menu (QAsmoke, then the 'Riverwood Trader' interior cells), but then I try to go outside, I get the pop-ups, and then my game crashes (sometimes with a visible 'lock up' before it dumps me back to the desktop).
Attached are crash reports gather from two different crash-loggers ('Trainwreck' & https://www.nexusmods.com/skyrimspecialedition/mods/59818?tab=description ).
📎 crash-2025-03-14-19-47-32.log
📎 crash-2025-03-14-20-07-35.log
📎 2025-03-15-06-03-58.log
📎 2025-03-15-06-32-28.log
📎 2025-03-15-05-42-56.log