I discovered something amusing about this. When I was living in Spain 20 years ago, my Spanish (ex-) wife and I bought a DVD collection of Friends. At first we'd watch it in English with Spanish captions so my ex could get the subtleties, then as her English improved, we'd watch it with English captions which helped with words she was unfamiliar with. Then we started doing the reverse, Spanish overdub with English captions so I could practice.

But when it came time for me to try Spanish overdub with Spanish captions, it turned out that the scripts had obviously been translated by two different companies, and what was said could be wildly different from what was written. Hysterically bad differences - to the point of completely changing the sentiment of something that was said. Mostly it was with insults or expressions, which could have various ways of translating, but sometimes they changed entire plot points, especially when a character's relationship with another was ambiguous. An aunt could be just a friend, or a sister-in-law could be a co-worker. It was so confusing, after a little while I just turned off the captions completely. Since I had seen all the shows at least once, it wasn't a problem.

A fun thing to do on Disney Plus is change between the various Spanish regions to see how they overdub characters. I did this for Guardians of the Galaxy and it's fantastic how Rocket would go from being a Mexicano gangster to a Spanish thug.