Switching from Gnome to KDE plasma

Hi, I'm currently using the Gnome desktop environment. I like to try KDE plasma. But I don't want to reinstall my OS again and configure everything again. I want a safe and reliable way to switch without any trouble or data loss.

Is there any way to switch from Gnome to KDE plasma?

What are the risks in that switching process?

What are the things I need to consider before this switching process?

Can I remove the old Gnome packages/safely without deleting my applications, configuration... etc after switching to the desktop environment?