Is there a way to stake or get some kind of dividends from the EDG token?
https://www.edgeless.io/blog/what-is-edg-bankroll-stakingYes, you can stake your tokens into bankroll and can get share from this pool. This article will help you to understand how this works and how you can stake your tokens into bankroll smart contract.
You just forget to mention that this bankroll staking arent working at the moment and nobody knows when it comes true. The last information from the Edgeless' telegram chart is that the team are working on legislative aspects of such kind of investments.