I’ve seen this mentioned a few times already: people wondering why certain communities don’t show up in their instance. You need to first search for that community via the magnifying glass icon and type in “!communityname@instance.domain”
Notice the exclamation mark at the beginning. Might take a few seconds. This will teach your instance about the remote community.
I expect some innovation in this regard in the next few months. Rexit will have a big short term influx to the fediverse that will die down, but hopefully some that hang around are the developer types who are being shafted by reddit.
Rexit lol
fleddit