I like the word tune rather than fiddle. The BSD are very stable. You adjust some configuration, and then updates without having to change your tools or your config with every release. The config are not provided out of the box but the manuals can be very informative.

A lot of current GNU/Linux complexity have no benefits for most users and may be an hindrance when they want to slightly alter their use cases.

  sudo -> doas
  systemd -> rcctl
  nftable -> pf
  iproute2|netplan -> ifconfig|route
  alsa|pulseaudio|pipewire -> sndiod
  cgroups|podman|lxc -> jails(freebsd)*

* Openbsd does not like containers or being a vm host