Thanks for the messages @Vanerihands, @Ituhippinen, @CitizenJ , @Pohjolan_Eka and @pasi.lahteenmaki!
As Eka mentioned, this came as a side effect of a larger Discourse update rolled out yesterday. This also came as a surprise to me and caused strong “don’t fix it if it ain’t broken” vibes. I’m in contact with Discourse and hopefully we can get the old button back 