No need to run Wallpaper Engine through Steam directly—it's now integrated into KDE/Plasma.

Here’s how to get it working:

Right-click on your desktop.

Select "Configure Desktop and Wallpaper" (or just "Wallpaper").

Under Wallpaper Type, choose "Wallpaper Engine for KDE".

⚠️ Important: You must already have Wallpaper Engine installed via Steam for this option to work.

After switching from Windows (or “Winblows”) to Bazzite, I simply pointed the KDE plugin to my existing Steam install of Wallpaper Engine. It instantly recognized and loaded all the wallpapers I used back on Windows—including video and HTML/JS ones.

The only exception was some custom wallpapers I made myself in HTML/JS, which weren’t uploaded to Steam. Those didn’t show up automatically, but everything else worked flawlessly.

Once the setup is done, your animated, video, and web-based wallpapers should work exactly like they did on Windows—no extra setup or tweaks needed.

Hope this helps someone else making the switch! 🎉