> These days it is common to apply to dozens of positions (some users track over a hundred opportunities).
Honest question: is it that common? I'm an average software engineer in Western Europe. When I was junior (around 2010-2015) I usually got a job after submitting ~3 job applications (mainly, because I was accepting anything at that time). Nowadays, since I have more experience, whenever I want to switch my job, I know exactly to what kind of company I want to apply to, this means I don't send a dozen applications; rather I send usually 1 or 2. But I do my investigation on that 1 or 2 companies I'm applying to. And I never interview with more than 1 company at a time (it would be very stressful for me).
So, I've never had the struggle of "keeping track" of job applications. I've never worked for FAANG, though (not sure if this has anything to do). I thought my situation was more common, but based on your statement perhaps it's not.