Plasma lacks support for video backgrounds. The feature is popular on store.kde.org, e.g. Wallpaper Engine Kde Plugin: https://store.kde.org/p/1475528/ SmartER Video Wallpaper: https://store.kde.org/p/1448924 Animated Image Wallpaper: https://store.kde.org/p/1339104 Smart Video Wallpaper: https://store.kde.org/p/1316299 Video LockScreen: https://store.kde.org/p/1316300 Video Wallpaper: https://store.kde.org/p/1316120 Animated Video Wallpaper: https://store.kde.org/p/1032000
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/1841
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/4217
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/4219