Unity on another device?

I have unity on another laptop but don't know how I can continue the projects from my old one, I have already registered and so but it somehow doesn't work I can't find the projects anymore My other laptop is not within range so I could use the two laptops not connect what should i do

If you no longer have access to the other laptop and your project is neither in Unity Collab nor on GitHub, you can't access the project.

You first need physical access to the other laptop where your Unity project is.

But I just have a different one, so I'm not at my old laptop but a different one and what do you mean by GitHub or Collapp

Both ways to save the Unity Project online.

so if you can't get the old laptop that has the Unity project on it, then it's gone.