Estonian SSR was probably slightly better by living standards than Russia, in 1990 as well.2018 GDP per capita: PPP dollars; nominal dollars
Estonia: 34,096; 22, 990
Russia: 29 267; 11,327
Turkmenistan: 19,527; 7,646
Ukraine: 9,283; 2,963
Ukrainian GDP per capita was similar with Russia, Baltic States or Poland back then, but now it's 3-4 times less.