PSA, you can Alt F4 while falling to pause your character mid air.
I don't really see this talked about in tip threads. If you ever find yourself falling from a fatal hight unprepared, using alt f4 will suspend your character in the air (can test for yourself).
From there, you can either think about what saves you have and be ready to press it when logging back it, or use the unstuck tool to save yourself.
Doing this keeps your momentum so you will take damage from the full fall if you log back in without anything to save yourself.