An amazing achievement for sure.
Sony surviving against known brands, surviving that time when everyone and their grandmother released a home console...whatever caveats one wants to put with it doesn't matter. Doing what they did and do isn't easy.
Sony was in to gaming literally since the 90's. The had arcade and home console products and the arcade products were under playstation architecture as well.
What they didn't wasn't easy but looking back in hindsight next to MS no one made the moves sony did to get where they are now. Nintendo is fucking joke when having this level of discussion they knew better but often aimed big and disappointed. Sony since PS1 everytime has some managed to put together a sdk that people want to use with hardware that is decent vs a company that knew better wanted profits and fucked themselves and everyone over to get there.
I'm not posting to say what they did is easy but if you're persistent, got a lot of money your competitors don't and will act in ways you're competitors won't it's not hard to see why they sold a lot more hardware.