Aight. Understood. Thank you!

In your case, I'd propose something like NixOS then. As your full system configuration can be contained within a (set of) config file(s), the very same ones you use to install/config stuff, a reinstall just becomes very easy. Heck, if you're willing to embrace the "Erase your darlings"-lifestyle, then I don't even think you'd ever feel the need for a reinstall. Because, frankly, the clean slate is just a reboot away.

EDIT: Perhaps Guix System is also worth considering as an alternative to NixOS*.

EDIT2: If you still want to explore other distros, then it's worth noting that nix, i.e. NixOS' package manager, is available on most distros and offers a lot of the benefits already. Like, you could configure your system using it, and then use that config on another distro to get your config back. Good stuff.