Re: Five out of five could run...
Well thank you for your expertise, you clearly know more about the system than I - or the vendors - do. First up, it's the *only* choice in my industry, so no suggesting we switch. Even if there was a choice, it wouldn't be in any way sensible for business or financial reasons to switch for an ideological love of Linux desktop - it's just too embedded and that's not how the real world works.
The back-end runs on MS SQL running on a "jumped-up" single user O/S so, there's a no. Some of the end points run via browsers (on, get this, Raspberry Pi boxes!) but other aspects use a Windows app that isn't going to be rewritten for Linux by anyone, ever. There are aspects to that Windows app that would even make Bill Gates weep, but they get the job done. Why yes, the software on the various CNC machines does run on W11 (ported from W10 in my time here) - thanks for asking - and runs very well.
Am I delighted that I'm stuck with what I have? Hell no. Does it work? Yep. Is it going to change? No chance.
I may sound overly sarcastic, but this debate has been going on longer than Linux has been just about ready for the desktop, and it does nothing but highlight how little a lot of the fanbois know beyond their own limited world-view. In the real world there are simply too many variables to allow "5 out of 5" computers to be migrated to Linux. And I didn't even mention the accounts team being wedded to Excel, and no, not the version that sort of runs in a browser.