See, here's the thing about open source, you have the source. You can always compile a discontinued program. You can even update the code if you want. No one can say "You can't run it anymore". I can grab Linux Kernel 0.01 and still compile it. No one will stop me. No one!
The Ender 3 is the printer I recommend new users get. It's open source hardware and firmware, the devices can be found for as little as $20 sometimes. Bambu Studio, UltiMaker Cura, and PrusaSlicer, and probably loads more are all awesome slicer software that is compatible with a LARGE number of 3D printers.
Not easy to switch a secured 4,000+ workstation business. Plus, a lot of companies get their support, license, and managed email from one vendor. It's bundled in such a way that it would cost MORE to deploy Linux. (And that very much on purpose)
LA's transit plans are all aiming for a 2028 Olympics launch. If it was not for that, I doubt any of these projects could get the funding in time.