Microsoft Edge 155.0.4283.62
A) settings > Start, home, and new tab page > On startup = OPEN THE NEW TAB PAGE B)
Find your msedge.exe path (find the icon of Edge in your desktop > right-click > properties > Target). In my case "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
C)
Go to:
edge://sync-internals
Then:
Sync Node Browser
Use the search/filter and look for:
Edge Workspace
Search for the item with "title": equal to your Workspace of choice
You need that GUID "30XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXcb"
D)
In the Desktop create a shortcut (right-click > new > shortcut)
Paste with your GUID: "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" **--launch-workspace="30XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXcb"
**
If you want you can pin the shortcut in the TaskBar.
Used GPT 5.6 Sol - Think Deeper in Copilot, but was hard to work with because this version of Edge does not cache localy for what I understand. Hope this helps.