Here are screenshots of the desktops I am currently running on each of my computers:
Desktop – SuperMario
Fedora 32 – KDE Plasma 5
2021:
Audio Activity (20210215) 
Books Activity (20210215) 
Comics Activity (20210215) 
Comms Activity (20210215) 
Main activity (20210214) 
Photography Activity (20210215) 
Programming Activity (20210215) 
Video Editing activity (20210214) 
Video Games Activity (20210215) 
Videos Activity (20210215) 
Virtual Machines Activity (20210214) 
Web activity (20210214)
Raspberry Pi IOT Device – Scarlett Music
Raspberry Pi OS (Buster) – LXDE
2020
Laptop – Daisy
Fedora 31 KDE Plasma 5
2020
Laptop (netbook) – Kuribo
Debian 10 – qtile
2020
Laptop (netbook) – babymario
Debian 10 – LXDE
2020
Laptop – Koopa-Troopa
Debian 9 – LXDE
2020:
KVM VM – Lemmy Koopa
Windows 10
2016:
Living Room – BlueYoshi
Fedora Silverblue – Gnome 3:
2020
Desktop – Bowser
Windows 10:
2015
Very brilliant desktop. How do you set different objects and wallpaper in KDE 5 virtual desktops ?
Each virtual desktop needs to have the same desktops/backgrounds. But each activity can have different settings.