GNOME Triple Buffering Now Works With Direct Scanout & VRR
It's still not looking like triple buffering will land for GNOME 48 with the feature freeze set for next weekend. But that Mutter dynamic triple buffering support has been improved upon and now at least is working for direct scan-out situations as well as variable rate refresh (VRR)...
https://www.phoronix.com/news/GNOME-Triple-Buffering-Direct