Every single job app I filled out in the last two years asked for my linkedin url. I don't know if not having one was disqualifying, but it does worry me.

It's not disqualifying, but not having a linkedin is a signal that could drop you towards the bottom of the resume pile. Companies have problems with fake applicants, and ATS systems do create "how likely this person is a human" scores. Having an online identity is one signal, and for better or worse, that is often a LinkedIn history.

Like a fico score, you can't escape the game if you want to play.