Voice search in v17.3

[buju]

I know that the project has been discontinued, but I'd like to know if voice search is available in the last alpha code (v17.3).
I am using it due to it being based on Kodi 17.3, which ensures proper app compatibility.
So, for Nvidia Shield - specifically, I get voice search/ typing in the keyboard screens of video apps. The IP button brings up the regular IP address entry screen. The remote's voice search button brings the regular Google Assistant voice search.

Is there any workaround? How can I invoke this voice typing/ search with my latest Nvidia Shield, in SPMC v17.3, in video apps?