On Fedora Silverblue 44 using an Intel Arc A580 Chromium based browsers display at monitor’s native refresh rate on boot. However, after waking up from sleep Chromium will refuse to run above 60Hz and VSync is disabled. Changing display settings or replugging the DP cable will fix it temporarily.
No other browsers or applications are affected and the problem didn’t happen in Fedora 43. KDE/KWin also seems fine.
Launching the browser through terminal leaves a bunch of errors: ERROR:ui/ozone/platform/wayland/host/wayland_frame_manager.cc:662] The server has buggy presentation feedback. Discarding all presentation feedback requests in all frames except the last 3.