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GNOME 47 - The Best Release Yet?
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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.
I experienced similar resizing issues with 47 and Flatpak Firefox, but in my case I was forcing FF to use Xwayland to accommodate my password manager. Once I enabled Wayland support in Flatseal, performance was back to normal.
That's interesting, I'm on the Firefox flatpak from Flathub too and had the issue on Wayland and XWayland.