After installing OpenCore, macOS installer option reboots to Recovey

Here I'll share u my whole OpenCore stick in case I forgot something in com.apple......:https://drive.google.com/drive/folders/1pPX46B20Nj9-WnODWBrCfU3pwNfbnPNa?usp=sharing

1. Well, I am booting with this.
2. Format my whole Disk to MacOS extended (journaled)
3. Select reinstall macOS Big Sur
4. Do the Setup
5. Then it reboots
6. There are some options
   1. OpenCore (dmg) (external)
   2. macOS installer
   3. OpenShell.efi
   4. Clean NVRAM
7. There I select the second option (macOS installer)
8. Then 3secs some kind of bootlog
9. Reboot
10. And then it boots to the recovery Menu again

Any idea what going wrong there? Using Windows I can verify that the Disk has an EFI Partition and a macOS Filesystem with about 14GB of used storage. I also tried to put the OpenCore files to the EFI folder using windows.. but I can't boot from it (which I think is kinda normal at this point.. just to describe what I've tried..) So safeboot is disabled and my disk (not the OpenCore, the disk where I installed) does not show up as bootable device in the BIOS.