Just info on the company (and that it might be hard to avoid bcs it might be a third party of an app you might be using - it's a big list):

As of May 2025, MongoDB was the fifth most popular database software. It focuses mostly on managing large databases of unstructured, "messy" data. It's typically used for mobile and web apps that commonly use unstructured databases. As of 2024, there were 50,000 MongoDB customers.

wiki/MongoDB