So why is none of that used? Perhaps, it's not nearly as good, or can't be used at all for the purposes?
Ukrainians are streaming live full HD drone camera footage to mission command via Google Meet. Show me how to do that with a geospatial link with 3 Mb/s uplink bandwidth and 1000ms latency.
The other LEO ones don't exist at all AFAIK. Projects on paper don't count. Only working networks do.