Source: https://cointelegraph.com/news/lithuanian-central-bank-announces-blockchain-collector-coin
Wiki says this: Lithuania is an EU member state which joined the Eurozone by adopting the euro on 1 January 2015.
From rules about euro we can read, that countries that have Euro are not allowed to have any other currency. So cointelegraph is lying or Lithuania plans to leave Euro. I would bet on first than the second.
It won't be a real usable currency, it's a collectible token, like a cryptokitten or something. So, they aren't violating the EU laws. So, cointelegraf isn't lying, it's just the user who posted about it is either confused or didn't read the article that they posted.
To this day Petro is the only coin that was actually launched, and as we can see, it's largely dead despite Maduro's hardest attempt to impose it on his people and trade partners. Now other countries would think twice before launching a government-backed coin.
I agree with you that PETRO is only real national cryptocurrency. Sadly they did not took it serious enough from early start. It was seen long ago that they dont really know what they are doing when they wanted to launch it on NEM and then .... It is sad missed chance. It could actually succeed that people get used to use cryptocurrencies.