Realistically it's in the several hundred range. I just did a ping using Vultr's Looking Glass from New Jersey to Mumbai and got around ~240ms on commercial fib

Realistically it's in the several hundred range. I just did a ping using Vultr's Looking Glass from New Jersey to Mumbai and got around ~240ms on commercial fiber. For people working from home in India (with cable/DSL overhead + distance from the IX) connected to servers in LA I regularly see 300-400ms. Also keep in mind in a VDI or teleoperation setting there's not only network latency but additional delay from the video encoding, compression/packetization, and decoding on the other side plus a bit of buffer. Honestly I think cloud gaming is a good test case for this - and in my experience that only works well when you have fiber and have the game server in the same city as you (basically <10ms).