I mean that the SWIFT is a crucial infrastructure to the banking system all over the world because it allow banks to wire money from country A to country B. SWIFT itself is controlled by the US & EU but even then it was very rare that a country would be disconnected from the system. Until 2023, the only country that did get banned from SWIFT was Iran and it was allowed to come back under the 2016 agreement. In 2023, in the context of the Russian invasion of Ukraine, Russia was banned from SWIFT and this prompted many countries that do no have automatic alignment with the US & EU to develop an alternative infrastructure that would allow their banking systems to continue wire money internationally without depending on the SWIFT system. For example, Russia has the SPFS(System for the Transfer of Financial Messages), China has the CIPS(Cross-border Inter-bank Payment System) and the BRICS are developing the BRICS Pay which is to be an decentralized and independent payment messaging mechanism system.

The Microsoft situation is very similar in the sense of that the can do this once and after that many public institutions will change back to non-proprietary office suites. It might take a while but some of these institutions will do it.

Yeah this is bad but this kind of stuff is the thing that can only be done once. Very much like the Unilateral SWIFT BAN on Russia. This prompted all of countries in the world to create an alternative and so they did, this case is the same thing. It might take some time but countries will find a way.