The nice thing about video use cases is that the VRR window range is less important, so long as you can find an integer multiple of your target rate within the window. So long as you can do that, you'll can get the cadence right and it will look fine.
Apple's whole "ProMotion" thing is built on top of VRR to make it seamless. Whether or not it's adopted by games is another matter. Since I built a small PC for games, I haven't followed too closely how quickly game devs have kept up with the Mac's capabilities. But my M1 MBP was able to use VRR with my 4K 120Hz monitor for years, and I've seen some reports of folks claiming that they can enable/use adaptive sync in games on a Mac.
Outside this new display though, I _think_ only the M1 and later MacBook Pros with 14/16" screens can do it without using a 3rd party display.
When you’re playing a game on Mac, use Adaptive Sync to help your display render the content correctly by dynamically adjusting the refresh rate.
support.apple.com
Someone showing off Adaptive Sync on Monterey in a couple real games: