I have never seen a problem with the seals that come on RPM heads....... for any brand of engine.
And I’ve sold and prepped piles of them.

Never say never, but that would be way way down on my list or probable causes for excessive oil use.

However, as has been mentioned, sucking oil between the valley pan gasket and the head is pretty common.
That’s where I’d look.
An inspection camera/bore scope should point you in the right direction.