They are just crypto friendly but they are not even close to El Salvador if the subject here is how the country adapting Bitcoin technology. El Salvador definitely fully embraced Bitcoin to the point that there leader invest there country money on it. I think Singapore is just for Bitcoin acceptance same with Vietnam on adapting the use of Bitcoin in there economy.
El Salvador invests their government funds in BTC that's a big difference from what Singapore is doing. But like Singapore, El Salvador is turning the country into a tourist destination due to the Bitcoin adoption or it could just be hyped by Max Kaiser since he and his wife move to El Salvador to show support.
The government offers the BTC companies tax incentives and citizenship afaik. They really floored the adoption level in the country.