I have a very, very old laptop with me. I don’t know the exact specs, but it has a single core celeron processor and 4GB of RAM. It’s an old little thing, maybe 15 years old.
I installed Debian on it with LXQT and it was chugging hard. I don’t expect it will run modern browsers anyways, so give me your best distros that can run on a potato and have a GUI.
Is gaming the main use case? If so, I think the distro won’t be the biggest performance factor.
If gaming is not the case, I would ask myself this question: Is a desktop environment a must? Because you’d be surprised by how much you’re still able to do without one.
This thing definitely won’t be gaming, but I’d like to maybe play videos (probably at a low resolution) and mp3 files at least.
In that case I’d go for something very barebone. Get a minimalistic debian up and running, and see how that works. There are plenty of lightweight desktop environments (to the extent some of them count as desktop environments), where TWM is an extreme example.