I'm not sure... are these improvements already released? Because we don't see any improvements since January 2021... RDS Server are eating memory and CPU even when there is no big workload in Teams. One thing might be the integrated Office Web but it still eats just too much memory and cpu.
Teams 2.0 for Business still isn't released, while on Windows 11, we see articles claiming to save up resources if you turn off the Teams + Widget https://windowsreport.com/save-system-resources-by-disabling-unused-widgets-in-windows-11/, which concerns us (Teams Home for Windows 11 - which by the way still doesn't support interoperability with Teams for Business / Teams Work - is based on the new shiny webview2 runtime instead of electron) and doesn't foreshadowing the appraised performance improvements.
But to be fair, we always recommend to do meetings on a fatclient instead of doing so on RDS Server. So while we don't see any improvements in overall usage of MS Teams, meetings might have improved.
Thank you for your continued work on Teams! There are still many features of the product, that need further improvements.