Comment by neepi

I assume it went as well as an acquaintance of mine found out. Wanted to go Linux and open source so dumped O365 and got Fastmail, libreoffice in to start with. His two office staff found rather quickly that they were up shit creek as they didn't know how to do anything and stuff didn't work quite how they expected it to. So they ended up switching back to O365 in under a couple of months. This was for a company that cuts out bits of foam and sells them.

A lot of computer users are drones. They have no conceptual idea or care about what they are doing. Moving stuff, even simple things, is crippling for productivity.

Now scale that up to hundreds or thousands of people. In local government people don't like to talk about the failures at all because there is fallout so we probably won't find the truth about what really happened but I suspect it wasn't all about politics and cash backhanders and MSFT investment.

If you really want to move off MSFT you will probably have to start again and run two completely isolated silos.