A new flag has been found in Chrome OS 101 that seems to indicate the possibility of enabling variable refresh rates (VRR). The flag, chrome://flags#enable-variable-refresh-rate, has to be used with “capable displays”, according to Google.

Chromebooks are continuing to evolve from the idea of only being good for very light workloads. Cloud

Source: Hot Hardware – Chrome OS Tests Variable Refresh Rate Support Ahead Of Chromebook Gaming Push