For instance I know i can navigate to https://lemmy.ml/c/[email protected] to see the “daystrominstitute” community at startrek.website, but is there a way where I can see all (or even just the most popular) communites at startrek.website, while still logged into my lemmy.ml instance (so i can just hit the subscribe button if i want to join)?
No it isn’t. I opened a feature request for specifically this: https://github.com/LemmyNet/lemmy-ui/issues/1397