I know Google Fiber generation 1 setups were Fiber to the home (to a “Fiber Jack”) with a provided router that had 1 gigabit Ethernet port and a coax/MoCA output. Then each TV receiver box got its connectivity via MoCA from the router (most of the customer homes were already set up for cable to any area there was a TV) and put out 100mb ethernet from each of those endpoints (these also doubled as Wifi APs).
What I’ve never heard of is an ISP offering a MoCA coax to your house and you having only a MoCA receiver. Supposedly the max distance between MoCA devices is about 300 feet.
Seems more likely the person asking the question actually just has a cable modem and could put their own router downstream of it if they wanted?
They need to make an open source version of the Hitster card game that lets you use this to listen to the whole song (if you choose) whether you have a Spotify account or not.