Mastodon features a more complex content filtering based on keywords [1],[2] and...

Mastodon features a more complex content filtering based on keywords [1],[2] and you can always try to pick instance that fits your needs. Hashtag support is here since beginning if I'm not mistaken. Bluesky has a rather simplified filtering [3], [4] that most likely will be appealing to mass users, tho since service revolves around customized multiple feeds they shouldn't in theory see and interact with the content they don't like in the first place [5]. There's no hashtag support so far - which seems odd because this is a pretty much standard feature on social networks.