I've had a few close calls at the Ring chasing my sub 8 min lap goal.
Schwedenkreutz gets you every time. Car gets light over a crest, and there is a bunp the further away you are from the apex. Leads to rear loosing traction and oversteer at 120mph. But It does get routine after a while as it happens very consistently.
Also Wehrseifen can be dangerous when not treated with respect. Very little traction off the line.
Brunnchen is not so bad when dry and oil free. I've actually seen a lot of crashes at Sprungfugel/Pflantzgarten 2. This is just before, Pflanzgarten 1. Video ends at Pflanzgarten 2.