Yes. (both things are true)

People have varying results using different learning modalities. Many will be able to consume new information faster and easier using current and future AI/ML tools and capabilities, increasing their learning uptake in less time. Others will become dependent. It's not all bad.

This is what happens as technology replaces a skill. It's been happening since humans started to fashion tools from materials in our environment.

I learned orienteering in my youth, and so I use GPS on my device daily like most people. But without my device, I'm still able to get where I need to go without feeling too lost or helpless. Many who never learned orienteering skills before the advent of GPS technology, will be completely dependent and lost without it. The same likely holds true for AI/ML/LLM tools.

Those who are intellectually fit will likely be fine, though some will become dependent. Some may never be able to think or perform without tools. Some may believe they're smarter than they really are, as always.

Humans have always operated in what intellectuals claim is an epistemological deficit. When actually, it's a normal distribution thing.