It is the Thai social welfare, foreigner can also have it, you are entitle to have free hospital, free vaccine which is great at the moment and when you reach 55 you get it all if you want, there is a social welfare website which when you enter your social security number you know how much money you have already
Yes they have if they want it is call social welfare, 5% from the employee and 5% from the employer of the salary. at 55 years old they can choose to take all the money they want or by monthly payment,
As today still 14 days quarantine for everybody who arrive in Thailand , they are talking about reducing the days to 7 days quarantine but here it change very quickly, better have official answers than gossips :) ;)
Koh Samui very small , Phuket a bit bigger but a bridge and if authorities close it you can not go out which now if you want to go in Phuket you need a covid test , Krabi nice