Google Workspace seems to have an issue with the latest update (24h2) on Windows 11. This stops Outlook from opening and causes the latest version of the tool to generate an error on installation.
Google has yet to formally address this other than saying that they don't currently support this update of windows.
Currently, there is no easy workaround to this issue.
some options you have are:
We will update this notice as soon as we have further information.