For Fedora 36: for me `dnf downgrade gtk3` worked just fine. It downgraded from gtk3-3.24.35-1.fc36.x86_64 to gtk3-3.24.31-2.fc36.x86_64 and did not suggest any further dependencies. With that, copy-paste works through CTRL-C/CTRL-V . copy-paste through middle mouse button is still broken, of course.Does upgrade to 3.24.36 on Arch fix that too? Hopefully, 3.24.36 will soon make it to Fedora as well.