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Gnome 46 getting VRR
(gitlab.gnome.org)
The GNOME Project is a free and open source desktop and computing platform for open platforms like Linux that strives to be an easy and elegant way to use your computer. GNOME software is developed openly and ethically by both individual contributors and corporate partners, and is distributed under the GNU General Public License.
No, not out of the box. Since it is an experimental change, you have to enable the gsetting through the command line. After that a toggle should be shown in the settings' page