My team built our product on top of a very capable NoSQL database called MarkLogic. It had issues, but also had a lot of things it did well.

But then the original licensing agreement we had negotiated was coming to an end, and the new deal was going to be massively more expensive.

So we used this as an opportunity to rearchitect our monolith into services built on other open source data stores, that also fixed a lot of the architectural issues and technical debt we had acquired.

So to answer your question, yes it’s possible to move off of a database, if the financial incentives are great enough.