SUMMARY Screenshots for Peruse are now 404 with the move from https://peruse.kde.org to https://apps.kde.org/peruse/. Appdata needs an update. See: https://github.com/flathub/org.kde.peruse/issues/111
Found them in https://invent.kde.org/websites/peruse-kde-org/-/tree/master/screenshots?ref_type=heads
https://invent.kde.org/websites/product-screenshots/-/merge_requests/112
Well done making the commit.