Ubuntu 22.10 on an Intel/Nvidia hybrid with driver 515 and MUTTER_DEBUG_FORCE_KMS_MODE=simple set is working for me. So it sounds like your oibaf PPA is the problem.
Please remove all PPAs from the machine, reboot, and then open new bugs for any issues you encounter.
Ubuntu 22.10 on an Intel/Nvidia hybrid with driver 515 and MUTTER_ DEBUG_FORCE_ KMS_MODE= simple set is working for me. So it sounds like your oibaf PPA is the problem.
Please remove all PPAs from the machine, reboot, and then open new bugs for any issues you encounter.