Microsoft: Embrace, Extend, Extinguish.
What's an example of an open protocol (what this thread is about) where MSFT successfully followed this strategy?
HTML before IE6. At one point Microsoft owned the web browser market to the same degree that Google owns it today.
Anything from this century?
IE6 was the most popular web browser until 2008. It wasn't until 2010 that we finally could somewhat ignore it when it dropped below 20% market share. It was a happy day when I could completely ignore it in corporate in 2018 when it was uninstalled from all computers.
Whereas when there's no popular open source protocol, the OSS ecosystem upgrades itself fast, like a cheetah? :P Whatever mental model you're using here might just be going over my head and I'd appreciate you being more explicit about it