It doesn’t have VRR but it does have a configurable refresh rate. So e.g. if a game runs at a stable 40 fps you can run the display at 40 Hz too (or 80 Hz for the OLED model) and then you don’t get the uneven frame spacing you’d get from vsync with 40 fps on a 60 Hz display. With VRR the screen would also adjust to whatever frame rate the game produces even if it’s not stable, and the Deck doesn’t do that. But being able to get 40 fps with uniform frame timing instead of the 30 fps you’d have to use if the display was locked to 60 Hz (LCD model) or 90 Hz (OLED model) is a huge difference.
It doesn’t have VRR but it does have a configurable refresh rate. So e.g. if a game runs at a stable 40 fps you can run the display at 40 Hz too (or 80 Hz for the OLED model) and then you don’t get the uneven frame spacing you’d get from vsync with 40 fps on a 60 Hz display. With VRR the screen would also adjust to whatever frame rate the game produces even if it’s not stable, and the Deck doesn’t do that. But being able to get 40 fps with uniform frame timing instead of the 30 fps you’d have to use if the display was locked to 60 Hz (LCD model) or 90 Hz (OLED model) is a huge difference.