How much as the MCAT changed?

I took the MCAT 14 years ago or so and ehm…did very well. Is it much tougher now?

I know it’s computer adaptive testing, does that make it a lot tougher?

Is the content about the same? Is there a universal bell curve? For example, the GMAT gives percentile rankings that are good across the years, that true for the MCAT?

(I have forgotten all my O chem, Physics, you name it, so in that way it will be tougher)