Stay with Ventura until there's a better solution than what the OCLP team is currently offering. It may be a week, maybe a month IDK. What's the rush to upgrade ? Keeping your Wifi and BT services working is probably more important than the Sonoma upgrade.
While waiting is a fine idea, I will be surprised to learn that a superior approach to Broadcom compatibility is found than OCLP.
There's likely something in protected code related to AppleSi Secure Enclave and wifi security (where T2 is AppleSi for Intel) that is forcing this incompatibility.
If a macOS protected service depends on a HW security feature that doesn't exist, what other options are there than modifying the OS or faking that HW?
Modifying the OS is the essence of the OCLP approach to keeping unsupported Macs going in spite of outdated and missing HW. It is based on end-running the OS via EFI to inject alternate code into the protected part of the OS. The injection requires SIP be disabled.
Apple has for years warned that running SIP disabled will eventually be impossible. The whole point of their design to prevent 3rd party manipulation of the protected portion of the OS. So when the limit is reached, it's the end of the line on SW injection workarounds. The time is growing near.
Hoping for a better workaround to Broadcom than OCLP sounds misguided to me — unless there's another approach than SW injection?
My guess is the end of the line is now being reached: that OCLP is the only workaround and by macOS 15 SIP will not be optional.
—I hope I'm wrong!
Waiting is always a fine idea, until you can't wait anymore.