Problems installing opencore correctly, possibly due to bootcamp?

How do I check within MacOS that opencore patch is applied?

mbp 2017 4 thunderbolts that had bootcamp and macos already installed before opencore

I installed opencore following this guide

https://dortania.github.io/OpenCore-Legacy-Patcher/POST-INSTALL.html#booting-without-usb-drive

I got 15.3 installed OK, but when Install OpenCore to internal drive, and reboot, I don't get the EFI Boot option, only Mac OS and Windows, but Windows has the OpenCore white and blue icon.

However, the MacOS boots and seems to be working (without a patch?) even though I didn't test it thoroughly

However, if I boot with the opencore usb made drive attached and choose EFI, upon booting through EFI > macos, opencore legacy patcher pops up saying that I'm booting from an external drive, would I like to Launch OpenCore Legacy Patcher and install to disk?

I say OK > Install to disk > disk0 APPLE SSD > disk0s1 - EFI- 314.6 MB

I found a similar thread here, but my problem seems different because both Windows and MacOS still boot (just maybe macos isnt actually patched?): https://www.reddit.com/r/OpenCoreLegacyPatcher/comments/15eh6bp/bootcamp_with_opencore/

Thanks