I’m currently running option B since I had the same issue where I was living when I built my server. I have a DigitalOcean vps and an openvpn tunnel between that and my home server, and the vps just forwards and masquerades all traffic. I’ve definitely had issues with speeds, and in the past it’s fluctuated so could’ve been an issue with something besides the vpn. It’s been a while since I’ve used it for streaming or game servers, but last I remember the speed wasn’t too bad. Playing factorio there was some noticeable latency but still playable although other games might not work as well. I’ve also done self-hosted broadcasts using owncast and that worked fine.