It is hilarious that Slack still has not been able to introduce proper video calls while introducing relatively useless integrations.
I do agree with the EU that Teams should be unbundled, but unless you have a cheaper and/or better alternative I don't see it being all that effective. Teams also integrate into Active Directory and the whole Microsoft ecosystem in a way most other systems just doesn't do (not that they can't).
And that's thing - if slack was actually trying to add features and integrations that users actually wanted, it would not fail that much.
I mean, Zoom succeeded without having anything except team conferencing...