HubSpot development team - its been 18 months since covid-19 hit, and forced businesses to adapt remote and virtual conference tools - eg. Microsoft teams, Zoom and others. Plugging Teams into Hubspot should be a very relatively straight forward product update and integration with Hubspot, surely this is a priority for Hubspot to fast track its development to provide this essential feature for HubSpot users.
Zoom V’s Microsoft teams
There are reports that Hubspot’s partnership and commercial licence agreement with Zoom is restricting HubSpot from releasing a new product Microsoft teams (competes with Zoom) as part of its core function and product offering. This may or may not explain why its taking so long, and that the ongoing status (and silence) from Hubspot that it is in “beta” phase. This beta phase may continue for some time until Hubspot is commercially permitted (if ever) to launch Microsoft teams.
Happy for Hubspot to clarify and give us a firmer update on when its coming 
hopefully with some more positive news