Comment by ascagnel_

Games tend to ride the new release schedule more than most other forms of media (except maybe new movie releases in theaters), and there have been a few notable releases in the past few weeks. Apple had a big push with Resident Evil 7 and Resident Evil 4 Remake in the past few months; if you already own those games on Steam, you got the Mac versions of those games at no additional charge. Also, Baldur's Gate 3 (which is widely regarded as one of the best games of 2023) got a native Mac release in Q4.

As for it being a numbers game, neither Apple nor Valve release direct hardware sales numbers, so only they will know.