solidarity with ppl in rojava is a user on todon.nl. You can follow them or interact with them if you have an account anywhere in the fediverse. If you don't, you can sign up here.

Do any companies use #mastadon for a private social network in work?

Think my company could use the "Federated" channel as different offices and "Local" as the local office the employee is at?

@thomasortiz95 didn't heard of one yet.
But I asume that would be better suited for that purpose.
project.hubzilla.org/page/hubz

...oh, but wait I found a brasil goverment related instance. I could look for it's url if you like?