Ofcourse its up for devs, dude is talking out of his ass like always.
He's just talking about first party stuff I'd say, kinda like how most Nintendo games on the Switch are locked 60fps but then you have the 3rd party titles like Doom/Wolfenstein and such happily coming in at 30fps. When it comes to game development, the way the game runs is always down to the developer.
Fancy hearing me on an amateur podcast with friends gushing over one of my favourite games? https://youtu.be/1I7JfMMxhf8