Not the parent commenter, but I find GTK4 worse than GTK3 on non-GNOME Linux environments. The popovers capture input and hang your entire Xorg session until yo

Not the parent commenter, but I find GTK4 worse than GTK3 on non-GNOME Linux environments. The popovers capture input and hang your entire Xorg session until you press Esc (affecting EasyEffects), GTK4 has window creation race conditions breaking title bars on KWin and window positioning on KWin and xfwm4, and line height and text y-coordinates are non-integer and text is rendered at fractional vertical coordinates, resulting in blur even with hinting on (which assumes integer-pixel vertical positioning).