I have hopped rather rarely. I think my journey started with Debian -> (all kinds of flavors of) Ubuntu -> Arch -> NixOS.
Maybe I missed a few (started with linux at probably ~2005). I've stayed on each of these for a few years, I think I switched between Ubuntu flavors a little bit more frequently. Stayed on Arch the longest for ~7 years. And I think I have basically settled now since 3 1/2 years on NixOS without plan to hop any further distros (unless there comes a distro comparable to NixOS that has less quirks and is generally nicer to use (e.g. tooling, strong, strict static typing etc.)).
NixOS is quite different than other distros (which IMO are all very similar) but does package-management+system-configuration basically how it should be done (in hindsight). It's a rather steep learning curve in the beginning, but it only gets better over time, since your system continuously improves, compared to different distros that accumulate dirty state over time and in one way or the other break after some time. This was often the reason why I hopped on a different distro, since I wanted a clean fresh install, which I get with something like Impermanence+tmpfs on root after each reboot.
Yes, if you've found your distro, I also don't see a point in switching, there's more important stuff than learning how to install and setup your distro everytime you hop. I only hopped, when I wanted to have a clean install because my previous was kinda broken (dirty state over time), and/or wanted to have more control, or try a different desktop-environment. I have now found a distro (NixOS) where I can have all of that at the same time (so no point in hopping anymore for me too).