I mean... most of my daily effort goes into supporting a bank. There's A LOT of mainframe stuff. Some COBOL. Some guys using AIX (actually, a surprising number of guys using AIX) and (as mentioned previously, xterms and emacs or vi.) On the dev side there's more focus on file format standards than tools. So use whatever tool that generates files in the appropriate format. We probably could use Win11, but they started using AIX in the 90s and just never got around to moving to Windows.