I assure you that as a Qb who has spent his entire career facing TJ watt/Garrett/Tomlin/Anarumo, Lamar has absolutely zero fear of that NFC East reject. Jim Shwartz got roasted for 29.5/game and he's the same style of beast.
Ravens D OTOH, was built in a lab to stop Mahomes. McDonald uses deception concepts like Anarumo that Patty hates and they drafted a chess piece specifically to cover Kelce.
The Chiefs boast a very good top 5ish defense (7th in DVOA but I'll be nice). The Ravens D is on a historic pace and is going to buzzsaw everything in its path.