A double question on Pi and Synology (opens in new tab)

I have a raspberry pi 4, with the DVB-T hat - I was about to do an install - when looking for the download, I noticed mention of Synology\. I have a Synology DS918\+ \(the apollo-lake architecture\) on which I am running Plex and related bits\. What are the respective pros and cons of running TVheadend on my Pi vs on the Synology? It just struck me that the Synology version may be used for talking to an external independent Device like a HDHOmerun, and may not work with the Pi DVBT - can anyo...