Photoshop freezes on start up

Since about two weeks my Photoshop CC (CC Abonement Enterprise, Desktop, Win 11 Pro) does not start anymore. The start-up screen freezes at 'Speicher wird bemessen...' which should be 'storage/cache is measured...' (in English).
Updated to last update via CC Desktop - still PS does not start anymore... 

Have to shut it down via Task Manager.

What could be done?

Thx Juerge from germany