I'm sorry that that has been your experience. (Or maybe I shouldn't be sorry - FAANGs pay pretty well.) But what you say surprises me, for two reasons.

First, FAANGs get far more resumes than they have openings. Demanding a degree seems like an easy, lazy way to eliminate some. I'm kind of surprised that they don't take it. (I mean, they shouldn't take it, but I'm still kind of surprised.)

Second, many engineering organizations that are not FAANGs are trying to model their hiring on FAANG approaches. So I'm surprised that, if FAANGs would hire you, others won't - especially after you have experience at a FAANG.