Stucked on Bootscreen after adding another user in Sonoma

Hii,

i have successfully installed Sonoma on my late '13 iMac and everything was running well!
However after adding another user in the system prefs , the mac became sluggish and a reboot took much longer than usually. Photoshop showed an unknown GPU and was unusable. After the running the root patches from OCLP again, the mac got completely stucked on the bootscreen.

I did a recovery installation (Mavericks -> Catalina) and now i want to install Sonoma via OCLP again.

My question: If i plan to have multiple user accounts , should i add them to the system in Catalina before installing Sonoma with OCLP or is a multiuser setup generally not working with OCLP?

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