This continues to be on our backlog due to prioritization of other work items. We will update when there is more to share.
An error occurred while saving the commentJonathon Wyza commented
This needs to be a thing. Not sure how in 2019 _any_ image display system wouldn't handle transparency.
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.