And you'd be wrong. I've joined internet groups that use Slack and left specifically because Slack is so bad, but stayed in places using Discord because it's much better. Teams is nice. Part of why Slack is bad is because they're trying to turn "send small amounts of text over the internet" into a billion dollar VC funded business and the foundations can't hack it. Part of why Teams is nice is because it integrates well with Office and Microsoft 365, that makes it a clearly superior alternative.
> "So, how exactly is forcing Teams upon the world anything other than abuse of a de facto monopoly and anti-competitive business practices?"
How exactly is making a better product (Teams) which integrates well with other products (desirable features) 'forcing' or 'abusing' anything just because you're a hater with an axe to grind?