A-U200-A64G-PQ-G Does this have FFMPEG plugin or SDK?

A-U200-A64G-PQ-G Digi-Key Part Number 122-2251-ND

Though not full license it does come with “FFmpeg plugins for Decoder, Scaler, and Encoders”

So yes to the FFmpeg plugins.

Here is a helpful getting started video Getting Started with the Alveo U200 & U250

As well as the full data sheet https://www.xilinx.com/support/documentation/data_sheets/ds962-u200-u250.pdf