[josephcsible]

I agree with your point, but you picked stunningly bad examples. MongoDB and ElasticSearch are both fauxpen source, and Vagrant and Docker are both open core. The only one on your list that's really open source is Red Hat. Better examples would be Nextcloud and Grafana.

[margalabargala]

I agree the SSPL means Mongo and Elastic are not free software, but they are open source, and I would not consider them proprietary.

[josephcsible]

The SSPL is not open source: https://opensource.org/node/1099

[margalabargala]

You're right, sorry, I should have said source available.