The indicated [patch](https://gitlab.gnome.org/GNOME/gtk/-/commit/0c1ea9221976b838101d2593754b6588...) doesn't seem to be a proper fix - see [GTK issue 5397](https://gitlab.gnome.org/GNOME/gtk/-/issues/5397).
Just tested on Arch Linux/Sway with GTK 3.24.35-2, trying to copy from Geany's editor to Alacritty doesn't work. `wl-paste -l` shows: ``` text/plain;charset=utf-8 UTF8_STRING text/plain STRING SAVE_TARGETS ```
A temporary workaround would be to paste the text into Geany's terminal and then copy it again. This seems to have the effect of inserting the `COMPOUND_TEXT` and `TEXT` types: ``` text/plain;charset=utf-8 UTF8_STRING COMPOUND_TEXT TEXT text/plain STRING SAVE_TARGETS ```