ffmpeg question

I understand that Jellyfin recommends using jellyfin-ffmpeg over vanilla ffmpeg. How can I tell if my Jellyfiin server is transcoding using Jellyfin’s version of ffmpeg?

intel-gpu-top shows that ffmpeg is being used to transcode, but I don’t know how to tell if this is the jellyfin version of ffmpeg or regular/vanilla ffmpeg.

Some screenshots and a transcoding log attached.

Jellyfin version: 10.10.3
OS: Ubuntu Desktop 24.04.1 LTS
CPU: Intel i3-1220p
Memory: 24gb LPDDR5