The Zen of Teams is that Teams is so clunky it cannot be Slack.
Without threads, there is no breach of thread-etiquette.
When "channels" are so awkward, nobody uses them. Then there is no constant deluge of middle-age folks creating a Facebook out of work, needing to be reminded that the photos channel is for business-photos, not pictures of their kids.
When emoji support is limited, nobody has to police people pushing the boundaries of what emojis are appropriate.
For the most part I agree with you: there is less functionality and hence less to police. There are also fewer people in chats/channels, as for the most part they are private or undiscoverable.
There are definitely still breaches of etiquette though, e.g. people frequently tagging a whole channel when they have a support question, even though it contains hundreds of people.
Without threads, there is no breach of thread-etiquette.
When "channels" are so awkward, nobody uses them. Then there is no constant deluge of middle-age folks creating a Facebook out of work, needing to be reminded that the photos channel is for business-photos, not pictures of their kids.
When emoji support is limited, nobody has to police people pushing the boundaries of what emojis are appropriate.
The software is baffling. But I like it that way.