I haven't used it in a year so things might have changed, but it seemed to only have the last 20 or so messages with a person stored in memory and I'd have to w

I haven't used it in a year so things might have changed, but it seemed to only have the last 20 or so messages with a person stored in memory and I'd have to wait for it to load if scrolling up to see more, and then only load them in batches of 20 or so at a time after that as well. It also didn't like me trying to paste screenshots directly in to it. instead I'd have to save them as a file and then upload that. For my use case at the time, which was getting engineering support as a software salesperson in an organisation with poor documentation, that was a huge downgrade from slack. Those extra seconds waiting or it to load or messing around with image files hurt when you're on the phone with someone.