What is Atlassian and How does it work 🤔
Welcome to the Atlassian Community!
Atlassian is a t-shirt company that sometimes turns out software.
That's an old joke I'm afraid, they've been well known for their marketing-by-giving-people-t-shirts for a couple of decades. In seriousness, they've got a range of Software products aimed at supporting and helping people across all sorts of fields.
Trying to explain everything won't happen here. There are entire books on Atlassian software, let alone what you could read on the web.