Hi, I am a new computer student.
Our lecturer required us to use Ubuntu Server to complete the classroom activity.
But I really really like Kde Neon.

How to I use Kde Neon without switch to Ubuntu Server?

What classroom activities do you mean ? What applications do you need for it ?
Ubuntu Server is a distro without GUI per default. Basically you can run any linux app on KDE Neon to (which is based on Ubuntu).

Alternatively, you can dual-boot your computer, which means you can have both Ubuntu Server and Kde Neon installed separately on your computer. This way, you can switch between the two operating systems whenever you want.However, it's worth noting that if your classroom activity requires the use of Ubuntu Server specifically, you might need to stick to it to ensure everything works as intended.