About 20 years ago, an insider at Cox Communications told me they got approximately 20,000 applications a month—a month.
The number of applications companies get each month make it impossible to manually look at each resume, hence electronic systems.
You need to learn to play the game if you are going to win it. There is a system to beating the electronic filtering systems.
That may still be true today -- I am in no position to say it is not true.
But a common story today is that no one wants to work. Companies can't hire people. Companies are desperate.
And if that is the case today, such companies are pretty foolish to rely on computers to filter through the (apparently) meager number of resumes that people are dribbling in these days.