I’m not too sure about navigating that specific app, but on desktop you can just follow a link like this one: lemmy.world/c/egg_irl@lemmy.blahaj.zone and you’ll view the blahaj instance from the cozy view of your lemmy.world account. You can subscribe there and it should appear in your feeds.
Alternatively, if you’re super into queer spaces you could just create an account on blahaj to make that like your “home” instance but that wont really affect your Lemmy viewing experience much. it’s akin to creating a yahoo email vs google email: you can still send and receive all the same stuff but you just log in somewhere else
It's not fair (startrek.website)
(sorry if anyone got this post twice. I posted while Lemmy.World was down for maintenance, and it was acting weird, so I deleted and reposted)