Can I use always the same link?

Can I always use the same link for my meetings?
Do I have to do something for it to be permanent?

Thank you in advance for your help!

Welcome to the forum.

Yes you can - assuming no one else grabs the room name before you. In essence, there are no permanent room names, but if you choose a name that’s hard to guess, then it’s less likely to be used by anyone else.