If you would like, I can generate the screenshots myself and ask for the development team to sign off on them. Or if it would be more preferable, I can simply take a screenshot of the latest Ubuntu MATE 22.04.1 provided by the development team. Or if the current screenshot already accurately represents Ubuntu MATE 22.04.1, we can simply leave the existing screenshot as-is.
The current screenshots are mostly widescreen (and the one non-widescreen screenshot is intended to be replaced by a widescreen one), so widescreen screenshots are likely more preferable than 4:3 screenshots.
Thank you for your time, and thank you for all of the effort you've been putting into making Ubuntu and Ubuntu MATE awesome!