Not as much pro-Russian as they are anti-establishment and also surprisingly anti-EU, even though they live in EU outside of Romania. Many of them are working minimum paid jobs in tough working conditions, plus they have trouble integrating there, so they dislike their current situation and find the blame in EU & the country they're living in.
There's also tremendous amounts of anti-EU propaganda on social media which they're subjected to and most people in today's age don't bother fact checking anything so they just trust whatever's showing up on their screen.
Georgescu's voters don't see themselves as pro-Russian. They think of themselves as "patriots", anti-LGBT, and anti-establishment. They also think that we are helping Ukraine too much, at the expense of domestic issues.
These are the messages that were used on TikTok, an open pro-Russia message would have been buried quickly.
I think it is more about urban vs rural voters. Latter group is more likely to vote with CG, even after emigrating. It takes more time for them to pick up western values simply because they are economically disadvantaged at home and to a lesser degree abroad as well.
Romanian culture is pretty conservative by modern Western standards. All the gay stuff is completely foreign and anathema to someone who grew up in it (most Romanians are orthodox Christians) and the political correctness/liberal propaganda is a return to the communist system but as applied to culture rather than economics. Russia is seen as the last bastion in Europe willing to stand up for traditional values.
There's also tremendous amounts of anti-EU propaganda on social media which they're subjected to and most people in today's age don't bother fact checking anything so they just trust whatever's showing up on their screen.