Android 15 finally implements true variable refresh rate support, but there's a catch - Reddthat

> TL;DR * The adaptive refresh rate (ARR) feature in Android 15 enables the display refresh rate to adapt to the frame rate of content. * The ARR feature reduces power consumption and jank as it lets devices operate at lower refresh rates without the need for mode switching. * While previous versions of Android supported multiple refresh rates, they did so by switching between discrete display modes.