The last time I did ran the job search, I needed a spreadsheet to keep track of things. When a recruiter reaches out to me, I'm going to see if their company is in there, and what my notes say about my last experience with them.
If anything I'd only remember postings I actually interviewed and was rejected for. Which is sadly a small enough number to keep in my head.
Well that's exactly why I apply multiple times.
Had an example last year. I applied once, got rejected, coincidentally met someone at that same company and team later in the week. They sent me a referral, and then boom, recruiter call the next day. My resume was the same. It's just the referral pile got me visiable.
I'm pretty convinced even pre-AI that there are so many times when I'm simply not seen. Getting no response or an automated response just tells me these days "okay, I didn't make it to a human. Maybe next time" instead of "welp, I'm not good enough right now".
Also note that those kinds of companies are pretty big with hundreds of roles for software. The hiring culture between each team may as well make it a few dozen companies. I'm not trying to re-apply (on purpose) to a small group of a a few dozen after one rejection from the exact same role.