Edge container tabs

The uservoice page linked a few years ago is no longer up and it seems this is still a desired feature nearly 3 years later.

We use AD in our environment and for administration of Azure / M365 we use a separate account. Because of this, it is a **major** hassle to use edge for any administration since every single time it's a tedious process of logging out, getting an error, playing around with edge for a bit, and signing in to the other account, tehn repeating every time i relaunch Edge. I generally will use Firefox for all of this, but there are some things (like ediscovery) that I've found don't work as intended outside of edge.

This is definitely not a unique use case and anything to accommodate users paying big money for MS's platforms would seem to make sense.