"Github likely does have what would be considered a monopoly marketshare" Citation needed. I'm interested to know of examples of how they have stifled competit

"Github likely does have what would be considered a monopoly marketshare" Citation needed. I'm interested to know of examples of how they have stifled competitors. AFAIK Gitlab came of age well after Github had already grown super-large. If Github could have killed Gitlab, wouldn't they have done so? "GitHub has around 56 million users, whereas GitLab has over 31 million users." - https://radixweb.com/blog/github-vs-gitlab https://radixweb.com/blog/github-vs-gitlab That is also excluding Azure, Bitbucket, AWS and the plethora of other git repository hosting companies and services. AFAIK, gitlab has more payed (AKA, private or premium) customers than does Github (though I lack a citation there, but that was my understanding when researching this a couple years ago on where to host a private companies code. My take-away then was that Gitlab is actually more popular amongst private companies and Github is more popular for open source projects). What would be considered Monopoly marketshare? I would suggest that Facebook, Twitter and Amazon have monopolies. If you get shut down as an Amazon seller, that can be 90% of your revenue. Given so many people can leave, and have left Github voluntarily, is implicit evidence that there are very decent alternatives (if not, there would be no alternative and you would be forced to stay with Github for lack of alternatives. That is not the case though, it's easy to just go over to Gitlab. From my perspective, I have no idea how Github can kill Gitlab, I'm curious if there is a vector where Github could use it's network effects to diminish Gitlab, as a specific example. So, how could Github do that?)