How does Docker Desktop work on Ubuntu?

Hello! I was using docker cli when working with linux. But recently I reinstalled my system so wanted to try Desktop version: enabled KVM, made sure file sharing thing is working, initialised pass thing, managed to install it and run. Looks like it’s working, okay. But how do I use it now? For example, in CLI I could’ve just wrote docker-compose -f file up -d and it was running. Now I write almost the same thing, yeah, it is running, but none of it appears in Docker desktop app. So what’s the purpose of it? How do I run things so they appear there? I’m kind of confused what’s the benefits of it and how to use it?