Microsoft has announced that Teams will no longer provision the Teams Wiki channel tab for newly created channels. The change goes into effect in mid-August. It seems like not many people like the Teams Wiki, but it does its job and deserves a little respect – or does it? Just in case you want to remove them, we include a script to find Teams channels with a Wiki tab.
https://office365itpros.com/2022/07/15/teams-wiki-nomore/
