Earlier quoted context omitted.
Munich was pretty good. It's been deployed for 4+ years and won't be replaced until the end of 2020 (assuming everything goes to plan) so that will be at least 7 years of use. It seems that the reasons to move back to Windows weren't completely technical either.
Munich effectively had a parallel program for anyone that had to work with any external entities, and many used it also internally. Munich never switched off Windows and MSFT Office at best it just abstracted or added additional layers of complexity. The moment you need to digitally sign some stupid PDF with some “proprietary” signature scheme or open some excel spread sheet it’s pretty much back to Windows.
and for signature schemes there is for example masterpdfeditor.
Are you uninformed, shill or windows-fanboi? I'm amazed the last days who comes out on reddit and ycombinator and spreads uninformed opinions...