honestly if you write C++ for work, there's no excuse for your company to not give you the beefiest dev machine that money can reasonably buy. given that rust exists, I think "get a faster computer" is a totally valid answer to build times, especially now that skylake malaise era is over and CPUs are getting faster
I find this amusing because one of the main reasons i avoid Rust (in the sense that i prefer to build things written in other languages if possible - i don't mind if someone else uses it and gives me a binary/library i can use - and it never went beyond "i might check this at some point, sometime, maybe" in my mind) is the build times compared to most other compilers :-P.
Also, at least personally, if i get a faster computer i want my workflow to be faster.
I still go back and forth on whether google test and mock are worth it.
Google benchmark is also nice.