Thank you for your bug report, gdm didn't change recently so it could rather been an xorg than gdm issue, the number of comments doesn't make the issue easy to understand either especially than gdm is the login screen but first screenshot shows a desktop config and not the login banner
Thank you for your bug report, gdm didn't change recently so it could rather been an xorg than gdm issue, the number of comments doesn't make the issue easy to understand either especially than gdm is the login screen but first screenshot shows a desktop config and not the login banner