More than I ever cared to read. At least 2 in high school, 3 in college. My college professor did her dissertation on Faulkner. All of them forgettable. Flags in the Dust, The Town, Collected Stories were some of them. Mostly plodding, prodigious, regionally oriented prose that would bore a dullard to death. That said, to each his own.
‘Flags in the Dust’ was written before he found his voice. You probably don’t like Joyce or Pynchon either I’m guessing.