VOG = "Voice Of God". It means a speaker directly over the listening position. It is included in (only) Auro 3D speaker layouts (Not dolby or DTS or even 22.2).
It’s is defined in the MPEG-H 22.2 layout, that’s why I knew those lead vocals were in VOG only.
In Dolby Atmos it can be replicated by placing an object in the centre between the two Top Centre speaker positions in a 9.1.6 mix, then on decoding the AVR would use your 4 tops (x.1.4) or 6 tops (x.1.6) to recreate the sound of a phantom VOG.