October 2022 is the 24th month the PlayStation 5 has been available for. In the latest month, the gap grew in favor of the PlayStation 4 when compared to the aligned launch of the PlayStation 5 by 27,788 units.
In the last 12 months, the PS4 has outsold the PS5 by 3.72 million units. The PS4 is currently ahead of the PS5 by 2.83 million units.
Ps4 didnt go through a shortage so thats what Id attribute this all to.