My only qualm with this would be that is relies on a specific RDP/VNC/SSH server implementation. While Apache Guacamole looks like a great solution, it forces GLPI to directly support this specific implementation. I would much rather see this done as a plugin while GLPI provides the interface or abstraction needed for plugins which could integrate Apache Guacamole or any other solution.
It would be up to GLPI's team through an official plugin or up to the plugin community to handle the actual implementation.

Some businesses may want to use RDP/VNC/SSH directly while others may want an external source such as TeamViewer, LogMeIn, etc. For example, my employer is now responsible for supporting users who may be offsite without a proper VPN so we are using LogMeIn due to the current pandemic.

I feel it is difficult to plan for the many possible implementations as long as there aren't any plugins that integrate these remote control services (at least none that I know of).

I'm looking into it for the second phase of the Kanban feature, but I cannot say for sure it will be accepted by the core team.

Software licenses (and Software) should be available to all assets that can have an OS now as of 9.5.0 (in beta right now). This includes Computers, Monitors, Network Equipment, Peripherals, Phones, and Printers right now.