@juippis Thank you so much for all the wonderful answers!
Especially the insight with ZFS is really appreciated!
This made me realize that staying with the LTS kernel is the way to go.
But at the same time it means my dreams of rolling around are gone.
And it seems gentoo seems like a good inbetween.
And my final doubt get’s answered here: Binary package guide - Gentoo Wiki
Thanks a lot again @juippis !!