Ubuntu in the early 2000s. My dad bought a little netbook that had it pre-installed. I was hooked, I was using Windows XP up to that point and it was something entirely different. My dad was kind of a techie at the time but none of us had any experience with Linux up to that point, still, we got the hang of it rather quickly and Linux had a lot more not so obvious problems at that time.
That’s why I’m saying a long time now, Linux is good enough as it is. It has been good enough for a long time. If you give it to people it works. But you have to give it to them. Normal people don’t install their OS’, as far as they are concerned it’s a part of the machine itself. Linux will only take off if it gets pre-loaded on systems as Windows and Mac was/is to this day. I Canonical wouldn’t have partnered with some laptop OEMs back in the day and I wouldn’t have gotten linux in my hand it maybe would have took years before I got to know linux and I don’t know if I would have installed it on my own.
Idk your laptop’s specs but I’ve been running Arch with XFCE on my Thinkpad T400 for a while now and it was decent enough to do college assignments, take notes, watch videos and stuff like that a year or two ago. Debian is also decent nowadays, and heard good things about Peppermint but I have no experience with it.
Truth is, it doesn’t really matter as long as you use a lightweight DE like XFCE, lxqt or cinamon. The thing that will inevitably kill older machines is the modern JS heavy web. Youtube and Reddit were really pushing the limits of that old machine sometimes but it struggled through.