We currently don't have a proper public roadmap for our product: We only tease 1-2 aspects of what comes in the next bigger release in our "What's new page". But I can well imagine that having one raises engagement

we do have it at Dashly.io , but the pandemic make us change the plans and not follow the roadmap, but focus on helping people in their new challenges

We recently started using Canny.io. It's working great to be honest. Our customers are suggesting updates ideas and they can follow-up with what we're working on :)