The 3 things I learned when I had my foundation repaired that shocked me: slab movement can pinch ducts
https://zionwjxr095.lumenforgex.com/posts/before-calling-3-things-to-know-about-crawl-space-encapsulation-with-foundation-repair-2
The 3 things I learned when I had my foundation repaired that shocked me: slab movement can pinch ducts, HVAC balancing after lift is smart, and filter dust loads spike.