I'm sure there was some of that, and maybe it was my location/mortgage situation (maybe they excelled at jumbo loans?) but when I did a full comparison they were "just normal" (some things had moved around on the fees which can make it harder to compare, mind you). Maybe I came a bit after they were tightening (this was just before covid IIRC).

After all, they just resell the loans same as anyone, not sure what there really is to optimize away.