Not sure if this would help in hunting the issue down, but here goes. Some place names / half a questname mentioned, no more spoilers;

Left arcjet via lift(as per), got semper quest, stored stuff at drive-in, went back for more, cleaned out the place and when i left again(via lift) whenever i quicktraveled anywhere, or moved towards you know where, straight crash to desktop.

Now, this is nothing new, but what i did find out is this; if i fast-travelled to the aber-farm it crashed as usual, but if i walked towards it until it was loaded in(i used tfc to scout ahead to see where the gameworld had loaded, it goes blank when you're "out of bounds"), then i could fast travel to the farm without a crash. Though the game still crashes if i even walk towards camb, but could be a similar issue.

All started, for me, after arcjet at around 35h in.

So i have a sneaking suspicion that this has to do with loading unloaded stuff in. Beth techs would know better, but could be from hitting some limit in the world, or some quest progression, or excess data stored.

That's about it, hope it helps, might try to QA this further even if i usually get paid for this

Otherwise, here's to a well earned break and hoping for a quick patch.