” The S-500 has been fielded given operators were announced to be in training in 2021.”
Is it more or real than the T-14 or Su-57 vaporware that Russian keeps promising?
I’m curious if you checked the SU-57 wiki for the list of deployments since 2018. There are several listed. Maybe you imagine vaporware to mean something different than fake aircraft vs real aircraft.
Did you mean software upgrades? I doubt the block release schedule is available and it’s pretty much certain the software version will not be visible on the fuselage as it flies overhead — so you could not have meant that. And thus did not note that it has been flying since 2018.
As for T14, I know nothing of it. The wiki indicates several existed pre 2020. No information from anywhere post 2022 has value so all that can be ignored. Regardless, if it exists, it’s not vaporware, and it clearly did pre 2020.