I'm not surprised, it's a garbage product.
We use it at work since it's bundled for free with GSuite
But - The name is just awful, you can't even find it in Google's search since the previous (still live) Hangout chat app overshadows all search results - Integrations and ecosystem around it is non existent - App doesn't see any meaningful updates - The Android app is so crappy I don't even know when to begin. Try initiating a conversation with some person by searching them. Or try sharing something from Android to a channel only to realize you cannot search for the channel in the list - Api to write bots is pretty badly designed - When you edit your message you cannot mention people anymore - Deleted GSuite users just keep floating around as ghosts
I give this product a year top before it is canned