Microsoft might be reimplementing a non-grouping option. It was spotted in a recent development build.

https://twitter.com/thebookisclosed/status/15929816173412474...

> Windows 11 is going to get a "Never Combine" taskbar item setting after all. It no longer features window titles like in Windows 10 & older releases, but retains the icon per window mechanic which some might still find useful. New in build 25246, hidden behind feature 29785186

> This feature is forcibly disabled and even if you do manage to enable it (regular ViVe commands won't do) its code is partially broken. You can notice WinDbg running as a few small patches were needed. No UI for enabling this exists in Settings yet.