Hey,
Just something to consider a CPU with a TDP of 200W doesn't necessarily consume more then a CPU with 52W TDP when doing the same work. All it means is that it can consume more power during work (but therefore typically being faster than a lower TDP CPU of the same gen), but since the NAS is running at idle most of the time, due to advanced power saving features, there often is no or very little difference in idle power draw.
Also, the Intel iGPUs (12th Gen Core i CPUS or newer) are very good at decoding/encoding for streaming with Jellyfin/Plex. If that's all you want to do, you cannot beat intel iGPUs, because a dedicated GPU adds additional (idle) power consumption. If however you want to do AI or Machine Learning things you do need a GPU with lots of VRAM, depending on what and how many things you what to run. You can also mix and match, take a dedicated GPU for the ML/AI things and the iGPU for streaming.