to the respondants above - you are right - that lacked nuance

Look at the maintainer lists of containerd and moby, which are used by loads of others, several docker employees on those lists - I didn't check what their amount of involvement is compared to other companies, nor whether they are even sanctioned by docker to do the work, but afaik those projects came out of OCI with Docker as one of the primary backers.

OP is wrong. Docker created containerd, then donated to cncf, then other contributors joined.