The Russian vaccine is an adenoviral vector vaccine, not an mRNA “vaccine” like Pfizer and Moderna. The vaccine was found to be 91.6% effective in generating immunity.
https://www.biospace.com/article/russia-s-covid-19-vaccine-appears-safe-and-effective-the-lancet/
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)00234-8/fulltext