Regarding copying over settings between macOS and Linux, powerusers usually maintain their own dotfiles and it's not a problem to make it somewhat OS-agnostic, so you can set up a similar environment within minutes.
"Bikeshedding, also known as Parkinson's law of triviality, describes our tendency to devote a disproportionate amount of our time to menial and trivial matters while leaving important matters unattended."
ie. spending way too much time configuring your working environment vs actually working.