I would not trust any adenovirus used to be effective due to how fast Corona mutates. They probably just loaded a "base" variant of a traditional adenovirus vaccine with Corona RNA particles which would make them "effective" at fighting those specific RNA strands, but overall about as worthless as an annual flu shot. It's a stop-gap measure at best.
I would have to look into what they actually
mean by inactivated, but again it sounds like they took the SARS vaccine and loaded it full of Corona RNA similar to the adenovirus vaccine. Again, this will help flatten the curve, but it's about as effective as a flu shot because it's not a full viral load but rather a different base virus already converted into a test specimen in the past that they are injecting Corona particulate into in an attempt to get the body to latch onto those Corona-specific sequences, which can have nasty side-effects without necessarily being effective if the body doesn't latch onto those RNA sequences when reacting to it.
>Vaccine based on peptide antigens
Realistically the safest short-term option since peptides are just protein signatures for the body to react to, but you certainly won't get me lining up to take it since peptides can just as easily be used to fuck with your hormones or other shit, and I doubt it's received the level of scrutiny a peptide-based solution should require.