Join Teams work meetings from Microsoft Teams (free) and vice versa

Microsoft Teams (Free) users can currently join Teams for work (or school) meetings only as guests, which requires them to use a browser and results in a sub-optimal experience. The new feature rolling out will allow these users to join Teams for work (or school) meetings in one click, without being redirected to the browser or asked to fill in their name/surname. They will also be able to continue collaborating with the meeting organizer and other participants via meeting chat after the meeting.  The feature will work in the opposite way as well, so Teams for work (or school) will just as easily be able to join meetings hosted by a Teams Free user with one click. This is associated with Roadmap ID: 167326

Raise hands coming to Teams

Raise hands is a new feature coming to Teams, and it is a really great feature to keep track of who's turn it is to speak, or a way signalling you have a question or comment to the ongoing discussion or speaker. According to road-map item 62755 it should be rolling out by the end of April, and should be hitting your tenant any time now, if it's not there already.

This feature is on by default, and all you have to do is to decide how this feature should be used in your organization and start training the users.