Profile tab > Settings > My plan.
Where’s the expenses timeline?
Not sure what you mean by that, but you can see all your transactions on the Home tab by opening up any sub-account you're interested in or by clicking on the Total tile to see all transactions in one timeline.
What is the community tab?
It has news, blog posts, social media posts from bunq, statistics and allows you to access the community forum which you're posting in right now.
Is bunq a social network and not a bank?
Sometimes I wish I could interact more easily with some people on here. And sometimes not.