Hi there, The company I am currently with has recently migrated their users from Omniture to The Experience Cloud. In Omniture it was easy to impersonate a user by heading to the user management section and clicking "login as user". However I cannot seem to find it since the users migrated.
This functionality hasn't yet been implemented in the new Experience Cloud User Administration site. There is a request to bring this feature back. You can vote on this idea at: Bring back 'Login As User'