Google is testing variable refresh rate (VRR) support on the Chrome OS 101 Dev Channel, as first spotted by Kevin Tofel at About Chromebooks. You must enable a flag at chrome://flags#enable-variable-refresh-rate to access the feature, which Google says can be used with “enabled displays.”
VRR helps prevent screen tearing by synchronizing a display’s refresh rate with the frames per second (FPS) of whatever is on the screen. Google’s test of the feature could indicate a smoother gaming experience on Chrome OS, which would make sense considering Google just announced that Steam is coming to Chrome OS “soon”.. rumors about the Release of three potential gaming-focused Chromebooks are also floating around, a possibility only reinforced by a new Chrome OS flag that adds support for RGB keyboards.
On the other hand, VRR support could signal an improved refresh rate for future Chrome OS tablets. As my colleague Dan Seifert puts it in his review of the Lenovo Chromebook Duet 5 and the HP Chromebook x2 11, Chrome OS is currently pretty clunky when used in tablet form. Tablets running Chrome OS need VRR if they want to compete with Samsung and Apple – the Samsung Galaxy Tab S8 Lineup has a refresh rate of 120Hz while the The iPad Pro comes with ProMotion support (which is basically another name for VRR) that makes animation scrolling smoother.
https://www.theverge.com/2022/3/20/22987668/chrome-os-tests-variable-refresh-rate-vrr-support-dev-channel-101-update Chrome OS is testing variable refresh rate support