Question about Ubiquiti UniFi Cloud Gateway UCG-Fiber

I have a P2P with a Sunrise Internet Box -> From my point of view the UCG fibre should work with the right SFP+ module.

The question is somewhat open. What from Sunrise? Coax/Docsis you need a modem (Connect Box) and behind it as a bridge the UCG-Fibre - that seems to work and is described by colleagues below. According to a colleague, the Sunrise fibre box does not seem to have a bridge option, so you have to "tinker".