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.
An error occurred while saving the commentFranco Andrea S commented
I do really find incredible that at MS they are not capable of implementing such a very important feature that, by the way, already exists on the mobile version.
Unfortunately because of changing priorities, this feature was moved to the backlog. The team hopes to pick it up again in the near future.