Chromium browsers running at 48% of max refresh rate on Gnome with VRR
I recently rebased my KDE installation to bazzite-gnome:stable just to see how things are on the GNOME side, made a new user to avoid config mixups, and logged in. Everything seemed very nice, except that flatpak Brave and Chromium browsers (ozone platform wayland) run at at a maximum of 83fps and feel noticeably laggy on my 170hz monitor when VRR is enabled on it. I have two monitors, 1440p 170hz and 4k 60hz. When VRR off, they run 170fps. Turning VRR on or off on my second monitor makes no difference.
I have tested this on openSUSE tumbleweed and regular fedora and the same issue occurs when using GNOME (it's fine on plasma), even when using non-flatpak versions of said browsers. I don't think Bazzite itself or flatpak are the problem, but I am wondering if there is a workaround/fix for it?
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You should never rebase between DEs.
It's in the documentation to not do. You may have conflicting configurations and it's unsupported.