I just wanted to put in my experience in the case of someone else having similar setup as I.
I experienced all the same issues on loading, Anti-cheat screen to black screen, and I went through every troubleshoot I could find. Uninstall, reinstall, clear %temp% files, repair anti-cheat, repair in Origin... nothing would help.
However, I use an audio interface for my computer and as soon as I plugged in to Realtek on my tower, everything worked like a charm. I dont think this game is fully optimized yet and my interface is an older one, which I can imagine is not compatible with the start up dialog for Apex...works fine with my mic, but to output the sound and be input as mic I have had no success
