No it isn't unfortunately, to this day plenty of games still get PS4 versions.But series S and Xbox are both on their way out. Support is being dropped.
Switch 2 will also have an opportunity to get plenty of great releases like Elden Ring, Baldur's Gate 3 and many other games that skipped the Switch.
Nintendo strategy is playing out masterfully. The only piece missing now is for us to find out that they'll also have a non portable more powerful version of the system.