I came up with the naming scheme here. We picked n for Intel as I could be confused with i3/i5/i7.

Early work was done in AMD and we had an a1 series pre launch.

IIRC, g is for Google or Generic where there are no promises on architecture. And f was for fractional.

I've been out of Google for 2+ years now so reality may have drifted from that original scheme.

Based on public talks by GCP engineers, it's very unlikely. Maybe SEV (encrypted VMs) might change that. However, the small glimpse into GCP that you get from looking at their work on KVM would suggest no.

During the Ryzen launch announcement GCP was listed on their partners, this may only be due to the availability of AMD GPU's but considering this was a CPU-specific talk I'd guess the magic 8-ball says "outlook good".