Yeah I had to wait years to really use Parquet effectively in Python code back in the 2010s because there were two main ones (Pyarrow and Fastparquet), and they

Yeah I had to wait years to really use Parquet effectively in Python code back in the 2010s because there were two main ones (Pyarrow and Fastparquet), and they were neither compatible with either other nor compatible with Spark. Parquet support is much like Javascript support in browsers. You only get to use the more advanced features when they are supported compatibly on every platform you expect them to be used.