Since 4.22.2, the Early Z-pass flags are being ignored, resulting in the number of draw calls to increase.
Tested in 4.21.2 (CL - 4753647), 4.22.2 (CL - 6574378), 4.23 (CL - 6925347)
Expected: The amount of draw calls should be about the same
Result: The number of draw calls has significantly increased
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-76059 in the post.