It’s true but also PlayStation publicly came out and stated third party wasn’t important to them.
ironic that what worked for them the previous generation caused them significant pain in the subsequent one.
The PS2 was actually a significant challenge to develop for far worse than the PS1 ever was but the competition at the time was struggling so much they couldn’t make up the ground Dreamcast had a stigma of being a last gen console by the time the PS2 came around and looked inferior compared to games like grab Turismo 3, the GameCube and Xbox were still a ways away and PlayStation had the reputation as being the place to play it was a perfect storm for them and the GTA games not coming to Dreamcast and Sony’s embrace really helped.
Third party basically drove PlayStation yi success over more capable consoles Xbox may have looked better at the time but it didn’t have GTA 3, vc, Sa or the stories games the mainline entries didn’t hit the Xbox until many years after being on PlayStation.
Then the PS3 with it’s cell architecture ramped it up again and just hurt Devs they didn’t focus on the GPU as much as they should have and they didn’t realise their deals they made with IBM could have resulted in the cell architecture being shared with Microsoft which it was and it did help them develop the 360
But really the 90s and 2000s were a wild time for game consoles now it’s a little boring it’s all off the shelf components and everything is mostly the same


