I am new to the Linux platform and need to work on ubuntu but by mistake, I delete some desktop files and installed Lubuntu desktop which is really not much attractive and now I want to go back to the official Ubuntu 20.04 default settings. Is there any way to do this through sudo commands?
Thank you so much for everyone. Your answers helped me to manage the Ubuntu workspace. –
But now I have one more question not relevant to the above one but now at the time of login to the user account I can see many workspaces like Ubuntu 2 times and LXQT desktop (for reference I attached an image below with the previous question), now my question is how to remove those or these are pre-installed options for user-dependent choice to use any like in android to use different themes?