Both Microsoft and Valve will have 3rd party made consoles next gen (Made by the likes of Asus, MSI etc), as well as being on PC and having handhelds that share the same library
Playstation better understand by that point lol
If they only understand by then, it will be far too late. They need to have understood that by sometime last year, or this year at latest. Basically it needs to be understood and changes put into action before the PS5 Pro releases.
Afterwards, it's just a question of how much damage to the value of their console hardware will be done, not if. And the longer to correct course, the more damage that'd be done in the meantime.