I use MoCA at home, 1 GBit. It works pretty well, and I get almost full speed.

Every now and then I have some blip and have to power cycle on one of the coax-to-Ethernet connector, so that’s annoying. It’s like twice a year, so not a huge problem.

The biggest drawback is high latency. It’s milliseconds instead of microseconds in the house. I guess it’s buffering and framing, so maybe unavoidable.

I also do see some small packet loss. Less than WiFi, but not zero like you’d see from a proper Cat6 cable.

Maybe just but a pair of MoCA adapters to try in your setup?