Maybe the real issue is the idea of a “collaboration tool”. You could argue the only such ambitious tools I’ve tried are lotus notes and Microsoft Teams, and both were horrible: lots of services but in an ugly ui with poor usability. Teams had unreliable phone and notes didn’t have it at all.
It’s much better dealing with a set of tools containing better implementations of the feature you want. Maybe it’s just not useful trying to cram that much functionality into one tool.
And yes I’ll name names, I currently get much better results from
- zoom for calls (especially with their generated summaries!)
- slack for texting
- files in a variety of tools specific to the need






What do you want from it? How long?