SDI over fibre with a cheap converter if you need to push multi hindered metres. Then people moves to 222-6 which packetised the SDi over IP, and now 2110 which breaks out the SDI to its components.
For most long haul links people still compress, good old h264 or 265 with latencies in the 200-500ms range (plus network propagation), or J2k/JXS and NDI which are more like 50-150ms. Ultimately 200mbit of h265 is far cheaper to transmit than 10ish gbit of 2110, and in many cases the extra 500ms doesn’t matter.
For most long haul links people still compress, good old h264 or 265 with latencies in the 200-500ms range (plus network propagation), or J2k/JXS and NDI which are more like 50-150ms. Ultimately 200mbit of h265 is far cheaper to transmit than 10ish gbit of 2110, and in many cases the extra 500ms doesn’t matter.