26 years with Linux. I use starship but primarily because I administer multiple kubernetes clusters and having the kube context staring me in the face is critical. I don't adjust the default config more than just making sure the kube bits are enabled.

That said my vimrc is 2 lines that i can configure manually, I don't touch bash config from Debian defaults and my fish config is vanilla save for a handful of functions because I'm a lazy. My ssh config is pretty heavily customized but mostly around what keys/usernames to default to for which hosts (see previous about lazy).