This. Singapore, an ethnically Chinese country, has announced they're buying Moderna, BioNTech and (Chinese) Sinovac, and approximately nobody trusts or wants to take the Chinese one.
Since they stand a better than 1/3 chance of getting SinoVac (since the other two will be reserved for the elderly as they have strong data) a lot of them are planning to delay getting vaccinated until more is known about SinoVac.
Russian vaccine is ok. Don’t know how true the effectiveness numbers are, but I don’t believe they are significantly lower in reality then on paper.