I know exactly what you mean because I felt the same way until I found a project that does exactly that. It is called Rolling Rhino Remix and you can check it out at
https://rollingrhino.org/ right there. It is an unofficial Ubuntu flavour that tracks the devel series, so you get continuous package updates without ever needing to do a major upgrade. What I really like is the tools they built around it, like rhino-update which handles updates smoothly with Nala for parallel downloads, and rhino-deinst which lets you install desktop environments easily. They also have a minimal installation option if you want to build your system from the ground up, and they integrate Pacstall which is like the Arch User Repository for Ubuntu. The documentation is solid and the community seems active. If you want a rolling release Ubuntu without the upgrade headaches, this is definitely worth a look.