Is it possible to connect two iMacs via Thunderbolt 3 cable? Is it possible to connect two iMacs via Thunderbolt 3 cable and what capabilities does that provide if so?

I've three things in mind:


Very fast file transfers between the systems
Very fast screensharing/remote control of either system (not to be confused with using one iMac as a second display)
Access other web services running on the second iMac from the first


Is this possible?  I know all of those are possible via 1Gbps ethernet, but Thunderbolt 3 is much faster.  I don't yet have a second iMac to evaluate whether or not Thunderbolt 3 can be used in this way.
I just found information about how to network via Thunderbolt for two Macbooks.  I've yet to verify that it works for iMacs, but it seems reasonable to assume it will, and will perform significantly faster than ethernet networking.
See: https://9to5mac.com/2016/11/22/macbook-pro-thunderbolt-3-bridge-network-video/