Sony are not interested in making AAA single player games??
Now that’s crazy talk right there.
And this rumour was always just made up click bait.
Well, they are, but for at least the next three fiscal years their investment budget for those stays the same while actual costs for game development increases due to inflation and other factors.
So per fiscal year will likely see less AAA single-player games getting funded if the total funding amount stays the same/stagnant, unfortunately. Though I wouldn't necessarily mind that if it means more AA-scale game funding, because you'd get a net increase in 'traditional' games with that & still get 1-2 AAA single-player traditional games funded each fiscal year, too.