[antasvara]

I think you have to ask yourself the following two questions:

1. Is the code that the AI generated something that I would have come up with minimal intellectual effort? (i.e. the majority of the time spent on it would have been looking up syntax, physically typing it, etc. and not higher level thought)

2. Do I understand what the code is doing, how to debug it when it throws an error, and can explain what it is for?

If you answer yes to both questions, AI isn't causing you to lose anything important.

That sort of code is like long division in math: it's disconnected from your actual understanding of the core concept.

If your answer is no to either question, AI might be dulling your coding skills. It's not a guarantee (perhaps you just forgot something that a simple Google search would have helped you remember), but it's a first check against AI eroding your skills.