So, I have been looking for a wallpaper manager with some features like:
1) automatically change wallpaper from my directory list
2) Get wallpapers from internet
Possibly display time and a quote.
Variety does all of that. From variety website :
Variety is a wallpaper manager for Linux systems. It supports numerous desktops and wallpaper sources, including local files and online services: Flickr, Wallhaven, Unsplash, and more.
Where supported, Variety sits as a tray icon to allow easy pausing and resuming. Otherwise, its desktop entry menu provides a similar set of options.
Variety also includes a range of image effects, such as oil painting and blur, as well as options to layer quotes and a clock onto the background.
dnf install variety