When I Installed KDE after GNOME DE There maked many appearance problems!!
I was thinking if I remove KDE the problems will be fix. but its not correct 
This is my Terminal… It is white! the close button converted to KDE close buttons and New Tab button changed…!
Ok I found that:
What can I do?!
Here, Whats the meaning of ID?
Transaction ID is the number on the first line.
If I use it what will happen for other commands?
(for the next 69 commands after this command)
says:
And I just restarted now my system but it didn’t work…
do I can to remove and install GNOME DE again?! 
how can I install that after removing?
On Fedora 34, this will install Gnome DE:
sudo dnf group install “Fedora Workstation”
so don’t I need to use:
# dnf group install gnome-desktop
??
thanks,
And what will happen to my custom settings in GNOME DE?
The group “Fedora Workstation” includes the following groups:
Mandatory Groups:
Common NetworkManager Submodules
Container Management
Core
Fedora Workstation product core
Firefox Web Browser
Fonts
GNOME
Guest Desktop Agents
Hardware Support
LibreOffice
Multimedia
Printing Support
base-x
So it already included the group “gnome-desktop”.
Umm… 
please
I am sorry that I am not sure.
Let’s wait for input from more knowledgeable community members.
OH No 
I removed GNOME Group, And all of gnome apps removed but not about itself 
Now I haven’t any Terminals and my GNOME is empty and … 
What can I do?! 
You can undo the last transaction.
Or just install the removed group/packages.
Package manager doesn’t modify user configs.
You can press “Ctrl+alt+F3” to switch to consoles and run dnf from there.
Really thanks everyone! 
I didn’t know I can access a Terminal using