I updated also. Everything seems to work just fine except sleep. It goes to sleep but it won't wake up. Sometimes it will wake up but show blank screen so I have to reboot and sometimes it will display the login screen but it doesn't respond to the keyboard or any mouse clicks. I 've tried a couple SMBIOS (iMac 15,1 / 19,1 / 19,2 an 18,something) but still no luck. Sleep used to work from the days of High Sierra.
I am using the latest clover and at first tries I was getting the EB|LOG timestamp error so after searching a bit I set SetupVirtualMap to true in clover configurator and so I managed to complete the installation (it took a while, a few times I thought it was stuck). Also I updated AppleALC, Lilu, VirtualSMC and WhateverGreen.
GIGABYTE GA-Z97X-Gaming 5
i7 4790-k
16 gb ram HyperX Savage 1866 ddr3
RX580 Sapphire