Thank you for your feedback! We are happy to announce the next step in our journey for External Access support as we enable you to start a group chat with up to 250 participants across different organizations. The team is testing this internally, and it is important to note that you will have to be enabled by admin policy for External Access in order to be able to use this new functionality. We will share an update as soon as one is available.
Thank you for your feedback! The team has finalized the designs for this feature request, and work is planned to begin shortly. We will share an update as soon as one is available.
The engineering team is continuing to work on adding support for multiple accounts on desktop clients. We will first launch support for 1 work/school account and 1 personal account so users can enjoy Teams for work and personal side-by-side. Windows and MacOS. Support for multiple work accounts is still being worked on and will come at a later date.
You can track status via the roadmap here: https://www.microsoft.com/microsoft-365/roadmap?searchterms=68845.