wayland was supposed to be up to date. its qtwayland that is an issue. in theory (read I don't want to do it), it's probably possible to have wayland composer displayed on flatpak-runner QML item (through openGL, maybe) which is some current one. as some gtk based one. but, even if possible, its a lot of work and that will all be wasted as soon as we have newer qt. as with newer qt, it should be way easier to make such composer using its qtwayland.