The ability to delete Bot messages feature has been added to the backlog. Thank you for your feedback!
An error occurred while saving the commentHeather Michelle commented
As of 8/30/2021, the ability to delete a Poll from the Posts section of a Teams is not available in the tenant I work for. Some of you say you can. Is it as simple as clicking the 3 dots and selecting delete. Because if it is, that button does not show for us. Thanks.