Add to that, that most homes have multiple devices that you want connected. So you need a fiber switch as well. 150usd will get you a mikrotik crs305, with 4 sfp+ ports. And you’ll probably want a router, but perhaps you can offload that to your ISP, kinda like routing on a stick.
An SFP+ single mode module alone costs ~20€ at least. Add to that a PCIe extension card and you’re way over the cost of copper.
Add to that, that most homes have multiple devices that you want connected. So you need a fiber switch as well. 150usd will get you a mikrotik crs305, with 4 sfp+ ports. And you’ll probably want a router, but perhaps you can offload that to your ISP, kinda like routing on a stick.