I am French and discovered a few years ago that a non-compete could be one-sided. I saw that on an offer and asked about the compensation, ready to negotiate a

I am French and discovered a few years ago that a non-compete could be one-sided. I saw that on an offer and asked about the compensation, ready to negotiate at least 50% pay for that part. The person on the other side was surprised, also when I asked if anyone actually signs this. I do not understand how a non-compete compete for key people can be one sided.