I’ve lived next to toxic neighbors in many apartments and can guarantee that they are doing it on purpose to be jerks. Every time I’ve complained politely about a noise issue, it’s always escalated and become worse in retaliation. Apartments are a complete nightmare for those of us with sensory processing issues, but there aren’t a lot of options. Most of them have paper thin walls, and finding alternative living situations in most cities is not possible.
The only thing that’s actually worked for me was ditching the politeness and just calling to report noise violations when they happened. Read your lease agreement in full to look for details on quiet hours, as well as any city ordinance details on the same subject. Next time the noise happens outside of quiet hours, call the police. File an incident report and send it to your landlord or property management company. Keep doing it, and they will eventually have no choice but to evict the rude neighbors.