Auto-boot from external SSD

I have Ventura on an external SSD and the old OS on the internal HDD. Now everytime I boot I get the boot picker and manually have to choose the SSD. Removing the boot picker in OCLP settings doesn't work (Ventura won't boot anymore and I have to use the USB drive again to boot in EFI mode).

Is there a way to autoboot OCLP on an external drive?

On another note: I installed Ventura on 13.6 release day before it was offered in the update channel. Now I get the update notification for 13.6 in settings although I am already on 13.6. Clicking it won't do anything as well, so I am stuck with the update showing in settings.

submitted by /u/mattbln
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