Well, sure. I can remember phone numbers from 30+ years ago approximately instantly.
I don't have to remember most of them from today, so I simply don't. (I do keep a few current numbers squirreled away in my little pea brain that will help me get rolling again, but I'll probably only ever need to actually use those memories if I ever fall out of the sky and onto a desert island that happens to have a payphone with a bucket of change next to it.)
On a daily, non-outlier basis, I'm no worse for not generally remembering phone numbers. I might even be better off today than I was decades ago, by no longer having to spend the brainpower required for programming new phone numbers into it.
I mean: I grew up reading paper road maps and [usually] helping my dad plan and navigate on road trips. The map pocket in the door of that old Chevrolet was stuffed with folded maps of different areas of the US.
But about the time I started taking my own solo road trips, things like the [OG] MapBlast! website started calculating and charting driving directions that could be printed. This made route planning a lot faster and easier.
Later, we got to where we are today with GPS navigation that has live updates for traffic and road conditions using systems like Waze. This has almost completely eliminated the chores of route planning and remembering directions (and alternate routes) from my life, and while I do have exactly one road map in my car that I do keep updated I haven't actually ever used it for anything since 2008 or so.
And am I less of a person today than I was back when paper maps were the order of the day? No, I don't think that I am -- in fact, I think these kinds of tools have made me much more capable than I ever was.
We call things like this "progress."
I do not yearn for the days before LLM any more than I yearn for the days before the cotton gin or the slide rule or Stack Overflow.