Earlier quoted context omitted.
> So all in all, looks like variable refresh will be a potentially very impressive feature, both for smoother UI and better battery life. And I think coming soon to macOS Monterey too. If we thought the M1 MBPs had impressive battery life at launch...
I think you’re thinking of “adaptive sync”, which is more of a gaming thing and only works when the app is fullscreened.
Adaptive sync and variable refresh rate are the same thing.
> only works when the app is fullscreened
Video of the monterey beta shows it works without being fullscreened. https://www.reddit.com/r/macgaming/comments/o1954n/adaptive_...
I don't know to what extent the display itself needs to be different, but hopefully Apple planned ahead.