Hey, same here. Stuck at "apfs_module_start:1393: load: com.apple.filesystems.apfs, v945.275.7, apfs-945.275.7, 2019/06/23"
The debug output last line is "Kext com.apple.iokit.IOAHCIBlockStorage loaded."
I'm on Asrock z390 pro4, i7-9700K, 2 sticks of Samsung 8gb 2666Mhz RAM. Storage is Intel...