I can only speak about Bucharest as that's the area I know best. From what I see it has a slightly higher GDP per capita than Lithuania, and if you factor in the metro area, Bucharest has the same population as the country.
"And is this meant to imply that standard of living is higher in Bucharest than, say, Vilnius?"
Statistically, it is, albeit by a small margin. There is also Cluj Napoca (Romania's second or third largest city, similar size to Vilnius), also at a higher standard of living than both, but I don't know much about that city. Outside these two, Romania is a wasteland.
Edit: Interesting:
Vilnius is the major economic centre of Lithuania. The GDP per capita (nominal) in Vilnius county was €25,400 (~US$30,000)[285] in 2019, making it the wealthiest region in Lithuania and the second-wealthiest region in the Baltic states.
Almost one third of national taxes is paid by Bucharest's citizens and companies. In 2009, at purchasing power parity, Bucharest had a per-capita GDP of €26,100, or 111% that of the European Union average and more than twice the Romanian average.
So likely Bucharest's GDP per capita is higher by a wider margin.
Edit 2:
The region Bucharest-Ilfov is the most developed region in Romania, with a GDP per capita of 139% of the European average. Bucharest thus surpasses other European capitals such as Athens, where the GDP per capita reaches 92% of the EU average, Madrid (125%), Berlin (118%), or Budapest (102%).
https://rumaenien.um.dk/en/the-trade-council/about-romania
"And is this meant to imply that standard of living is higher in Bucharest than, say, Vilnius?"
Statistically, it is, albeit by a small margin. There is also Cluj Napoca (Romania's second or third largest city, similar size to Vilnius), also at a higher standard of living than both, but I don't know much about that city. Outside these two, Romania is a wasteland.
Edit: Interesting:
Vilnius is the major economic centre of Lithuania. The GDP per capita (nominal) in Vilnius county was €25,400 (~US$30,000)[285] in 2019, making it the wealthiest region in Lithuania and the second-wealthiest region in the Baltic states.
Almost one third of national taxes is paid by Bucharest's citizens and companies. In 2009, at purchasing power parity, Bucharest had a per-capita GDP of €26,100, or 111% that of the European Union average and more than twice the Romanian average.
So likely Bucharest's GDP per capita is higher by a wider margin.
Edit 2: The region Bucharest-Ilfov is the most developed region in Romania, with a GDP per capita of 139% of the European average. Bucharest thus surpasses other European capitals such as Athens, where the GDP per capita reaches 92% of the EU average, Madrid (125%), Berlin (118%), or Budapest (102%).
https://rumaenien.um.dk/en/the-trade-council/about-romania