While i do kinda agree with you that it’s debatable on if it’s even worth it to invest the time in it, i do think it’s neat even for a home setup, but i’d say it depends on what your setup looks like. If you’re the type of user who just uses a stock DE with some apps on top of it there’s probably not much to be gained, but if you have a highly customized setup, like a minimal arch install for example with a bunch of window managers, custom services and configs and all that, then it’s pretty nice to have all that stuff declared, so you can easily replicate it when you reinstall.