Lemmy communities by default offer RSS as an alternative way to subscribe to content and quickly get insight into new content that was published.

With Voyager, one is required to open the communities one by one and see if new content was added.

My request would result in something like:

voyagerapp@lemmy.world (5)

Where the number 5 indicates the number of new OPs in the community that were posted after the community was visited for the last time. Visually, I think it best to outline the number on the right and keep the name on the left.