Well, I flashed stock and everything works as expected. I flashed all versions of 18.1 and had the same issues.
I also tried Havoc custom ROM android 11 and had the same issues. I might try lighthouse and other custom ROMs but I can't figure out why this is happening? It's fine on stock so not a hardware issue??
Hello, I maintain DotOS for the G5 and can confirm that double tap to wake works on it fine.