Image transcription:

[Two screenshots of the ‘fitness’ community are shown. The first has the name ‘Lemmy.world’ in the upper left corner of the page, and the second has the name ‘Feddit’ in the upper left corner. Both names are underlined in red. The community name ‘Fitness’ is circled in red on both images, as well as the subscriber count for each community. The image on the left (Lemmy.world) lists 1.1k subscribers. The image on the right (Feddit) displays 18 subscribers.]

^I’m a human volunteer transcribing posts in a format compatible with screen readers, for blind and visually impaired users!^

A bit late, but the number of subscribed users a community has you see on one instance is the number of subscribers to said community on this specific instance.

E.g. On this fitness community, there is 1.1k subscribers that come from lemmy.world, and 18 that come from feddit.de.

You can see the real amount of subscribers a community has on the Lemmy Community Browser.