>no distro maintainers that constantly change stuff.

This is one of those things that mom-Linux people think but isn't really true. I can think of two episodes in the last decade (systemd and Wayland) that constituted controversial changes but frankly there are people who make "not using systemd" their entire identity and it's just so much cringe.

Even on a rolling release bleeding edge distro like Fedora things really don't change that much at all.

>I don't view my OS as a hobby, but I do want to have full control over it and to be able to understand how it works.

FreeBSD doesn't afford you any more or less control over how the system works than Linux.