Envy Ryzen macOS virtualization + ram upgrades

I'm looking at buying a x360 Envy 13" that only has the Ryzen APU (3500U). Could anyone tell me if it's possible to:

a) Upgrade the ram on these machines
b) run MacOs in a VM on them

I know that rzyen is not the best for hackintosh, however I'm unsure if this also affects virtualization. In terms of ram I know that the Vega APU eats up to 2 GB of ram but here they are only selling 8 GB models so I don't wanna lock myself into 6GB of usable ram for the foreseeable lifespan of the laptop.

Thanks in advance