I completely agree with the backup plan that deeveedee recommends. You are using OCLP, which makes your Mac have a non-standard setup. That can sometimes fail more easily, and some of the updates WILL occasionally have a bad result, and you would need to back out of that update. Having a current full backup is (always) a good plan while you are using OpenCore. My main home Mac is a 2012 Mac mini, running Ventura 13.6.5, and have not had any recent problems with OCLP, and I usually will do an OTA update when that is offered. I have a less-used Mac, also running OCLP Ventura, which I use as a "victim" for OTA updates. When that other mini seems to update OK, I do the same update on my main Mac. So far, so good--I have only completely screwed up the system once on that mini. It try to avoid that, if I can...
When you install a system update on an OCLP Mac, the Apple update always removes the patches, so the first thing you do after the update, is to open the OCLP app, and reinstall those patches (the Post-Install Root Patch process). That patch reinstall will need a restart when complete. After that restart, then run the Build and Install OpenCore, which will redo the EFI partition for the most current OpenCore build. You will get to restart after that EFI build is installed. You will hold the Option key when you do this restart, so you can manually choose the EFI partition, press Enter to accept that, then click on your actual boot partition, and enter to accept THAT. After your system boots, be sure to check in your System Settings/General/Startup Disk -- to make sure that your boot system is selected in that Startup Disk window.