Before updating use either OpenCore Configurator or Hackintool to see if the Kexts need updating.
As you can see, my kexts are out of date. No problems for 11.4 but prior to 11.5 (or 12.0) I will for sure be updating the kexts. Too many times I have been stung by the "if it works, don't change it" philosophy; It's always a 50/50 gamble. The same goes for OpenCore, especially on AMD systems. I went two system updates without having to change anything (boot loader, kexts) yet 11.4 forced me. Thank God for System Restore.