Can I use the apple “USB-C adaptor to Thunderbolt” to daisy chain a “Thunderbolt to HDMI” (moshi), or even a “Thunderbolt to VGA” (apple) adaptor?

The Thunderbolt 3 to Thunderbolt 2 adapter does not pass DisplayPort or HDMI signals.

You need to use USB-C alt mode adapters instead of Thunderbolt 3 adapters for HDMI, VGA, etc. You can use a USB-C to mini DisplayPort adapter, then connect your adapters (which are mini DisplayPort, not Thunderbolt) to that.