It depends. I’m working in the quant department of a bank and we work on pricing libraries that the traders then use. Since traders often use Excel and expect add-ins, we have a mostly Windows environment. Our head of CI, a huge Windows and Powershell fan, once then decided to add a few servers with Linux (RHEL) on them to have automated Valgrind checks and gcc/clang builds there to continuously test our builds for warnings, undefined behavior (gcc with O3 does catch a few of them) and stuff.
I thought cool, at least Linux is making it into this department. Then I logged into one of those servers.
The fucker didn’t like the default file system hierarchy and did stuff like /Applications and `/Temp’ and is installing programs by manually downloading binaries and extracting them there.