antiX I’ve used this before on an old laptop (also an atom and 2gb RAM) and it’s very lightweight. It just doesn’t have defaults that I prefer but if you tweak it enough, it should be fine.

Might be overkill (or underkill), but Tiny Core Linux is the most lightweight I know. While having an up to date kernel (6.1.2) and glibc (2.3.6).

What are the minimum requirements? An absolute minimum of RAM is 46mb. TC won’t boot with anything less, no matter how many terabytes of swap you have. Microcore runs with 28mb of ram. The minimum cpu is i486DX (486 with a math processor). A recommended configuration: Pentium 2 or better, 128mb of ram + some swap

Also, I’ll just mention that it all means nothing as soon as you open a browser window. Then all your RAM is gonna be used up anyway.

As other have already alluded to, any distro with a lightweight desktop environment should work on that laptop. However, we don’t know if it would work out for you; simply for the fact that you haven’t given any other information.

I’d go for Alpine Linux in such case.