It could be that too. But just seeing Apple not raise prices on the face of it, that could be purely from taking lower margins. I'd have to dig into the last earnings call.
Apple hasn't had many models constrained by supply instil recently (Neo, Mini and possibly studio). The ram shortage doesn't seem have have hit them until quite recently. Existing agreements? They pay more to be prioritised?
Tim Apple has never been one to shy away from squeezing out another dollar.