In order to report a new feature/bug or upvote existing ones, please visit the native app center in the lower-left corner* and click the 'Requests' app.
*Native App center might be in the bottom-right corner if you are using the horizontal spacebar
Opening the app, you will find three boards:
Bug Report, and
Poll for extensions
Select the one that is relevant to you.
Before submitting the new feature or reporting a new one, please check if there already exists a similar request. If you find one, please upvote.
Additionally, please be welcomed to check the top features, and upvote the ones that are interesting for you.
Last but not least, you can submit the new feature by simply clicking the create button: