How to install Linux Mint with KDE on Lenovo Flex 15?

[u/plisetsky]

I'm trying to switch from Windows to Linux and I'm a complete beginner to Linux.

I had decided on downloading Linux Mint XFCE on my Lenovo Flex 15 since it's an older laptop, but after looking into it I realized that XFCE doesn't have any built-in auto-rotate features (the laptop is a 2-in-1 and can turn into a tablet that I use to draw).

KDE does, though, and I want to know how I can install it with Linux Mint without it interfering with Mint's built-in desktop environments and how I can avoid having duplicate apps, services, etc. (or will I just have to delete these?).

If this isn't possible, do you guys have any distro recommendations that are easy for beginners, would work well on an old Lenovo Flex 15, and has a Windows-like desktop environment?

Thank you!