I have a 2 layer board with +- 15VDC for op amps and +5VDC for the digital components. I've looked around and found a ton of great info on best practices including videos from Eric Bogatin and Rick Hartley. But I haven't found a definitive opinion about crossing power tracks with signal lines. I know the current return path wants to follow the trace so if I cross a power trace the return current in the ground plane will spread to find the lowest impedance path back to ground.
It seems like very short crossings will have a limited impact on the power return path. But will the signal line have issues? I have analog and digital signals as well. I've grouped the analog components away from the digital. I'm just not clear about how much, if at all, I can disrupt the power return path without causing noise in my analog signal. It's not a high speed board...using an Arduino Nano to control the logic.