I don't know, but anecdotally, I still use it for work, but no longer for personal chats.
It also seems like someone at Slack is tasked with driving up engagement, because I get these "Your team is missing you" messages from Slack (only to be find a dead slack community). That might be a sign that they're losing traction?
Used differently I'd say, but can't say I have a 100% view of all the users. My feeling is that various software projects moved to Discord instead (particularly FOSS which feels strange), and Slack seen an uptake in enterprise usage which makes sense considering the new(-ish) owner.
Which is unfortunate, but a consequence of Microsoft's perennial, embrace, extend, extinguish - they embraced instant-messaging version 3 (or wherever we are now), and they're onto the extend part - extending Teams' reach by bundling it 'for free' in Office, and the OS, so people don't "need" to buy Slack.
Slack won't be 'extinguished' but it will have a falling market share, despite the dumpster fire that is Teams, and the bean-counters in most corporations getting kudos from their bosses for 'cost savings'.
Frequently fails to connect, doesn't honor system audio device settings and frequency forgets its own, frequently fails to mark messages as read, sometimes even after hitting "Mark all as read," sometimes fails to send notifications on new chats, especially on my phone.
It's the least reliable chat program I've ever used.
