I get that government use needs to be stringently tested for security, and so things take a little longer. But really, there are PLENTY of good FOSS products in existence that can be used as a base framework and a head-start to things like this.

You don't have to re-invent the wheel when you could easily fork Jitsi-meet and harden it/secure it to your needs in the government.

Jitsi is one of my top 5 FOSS projects that are basically already mature enough to be used in a professional setting