I would like to help out adding screenshots for application in Ubuntu Software. Before with older version it was super easy, take a screenshot of said software and upload it to screenshots.debian.net. From what I read way back when GNOME Software replaced Ubuntu Software Center, I can’t just submit a screenshot to that website anymore. Could someone point in the right direction so that I can help out and make Ubuntu Software really nice feature rich place for users to install software.
Thanks for your offer of help.
The right - and the sustainable - way to handle this is getting the software to supply AppStream metadata. This lets you supply a screenshot, and when Ubuntu gets a package with the AppStream data contained within, GNOME Software should use that screenshot too.