It genuinely depends on what industry you are in. Every single job I’ve had has either been calling the companies in the area and letting them know I’m moving and want to have employment lined up before I move, or by calling a company and letting them know a shift in management has occurred and I’m looking to transition to a different company. The most I’ve had to do was email a resume, and if there’s an interview it’s a lunch interview that’s super casual.
Basically any trades based industry still operates that way, because most trades are still local businesses. When you get into the national or international businesses they streamline the humanity out of it.
So I’m someone who actually designs and deploys speakers in large scale applications like arenas and performance halls. There is some truth to making all of the frequencies arrive at the same time based on your listening spot. However the “peak of an average waveform” is bullshit. The reason why time alignment is a thing is because of 2 reasons.
Is any of this important? No. Sound (any wave really) will merge with other frequencies and produce a unified wave as long as the drivers are close enough together. So as long as the distance between the tweeter and the woofer is within half of the wavelength of the crossover frequency, it literally does not matter. The crossover’s between the tweeter’s and the woofer’s in most speakers are typically within 800-2.4khz, or 17”-5.6” (43cm-14cm) in wavelength. As long as your drivers are within that distance of each other the sound will converge.
And if it wasn’t, we can delay the electrical signal in the amplifier to make it all line up!!
As someone who designs audio equipment, I hate audiophiles, they make a mockery of my profession.