?? Well I guess hashtags aren't officially supported, there is no "trending hashtag" report. But they work just fine. Try searching on #Caturday. But you get the same results if you search Caturday without the #. You can search any topic you want just fine.

So you read a tweet with a hashtag, you click on the hashtag and see 1,000 twets on the topic. Blue Sky, leave the topic, scroll up to top of page to find the search box, manually type in the topic. See, hashtags are a million time more efficient.

I as well would prefer that Bluesky supported hashtags in that way. But the search capability does exist!