Wait what do you consider a microblogging client?
Not to speak for nostr:nprofile1qqs04xzt6ldm9qhs0ctw0t58kf4z57umjzmjg6jywu0seadwtqqc75sprfmhxue69uhhq7tjv9kkjepwve5kzar2v9nzucm0d5hsz9mhwden5te0wfjkccte9ec8y6tdv9kzumn9wshszynhwden5te0wp6hyurvv4cxzeewv4esdp32r9, but in my understanding microblogging clients are the Twitter-clones, like Amethyst, Coracle, Damus, NoStrudel, etc.