Microsoft Teams Integration bot doesn't respond or prompt Sentry authentication

[AL-Cythera]

Environment

SaaS (https://sentry.io/)

Steps to Reproduce

1. I open the "Sentry" app in MS Teams "Apps"
2. I click "Open" , and select our MS Teams channel ("Standard" type) and click "Go"
3. I'm taken to the channel I selected, with the "@sentry" text in my chat dialog
4. I send the message to the channel

Additionally, Direct Messaging the app to prompt it for "help" or "link" does not respond

Expected Result

I would expect the Sentry Teams App/Bot acknowledge or respond in either the channel it has been added to, or via Direct Message, and prompt us to link to our Sentry instance.

Actual Result

Product Area

Other

Link

No response

DSN

No response

Version

No response

[getsantry]

Auto-routing to @getsentry/product-owners-settings-integrations for triage ⏲️

[linear-code]

ENG-8165

[AL-Cythera]

Possibly relates to #119389 except that details a self-hosted instance, where we are SaaS + O365 cloud Teams