How does Social Security work credits work for the self-employed?

How does the 1 credit of Social Security work credits per quarter work for the self-employed?

 

For example, in 2023, you receive 1 credit for each $1,640 of earnings, up to the maximum of 4 credits per year. But if you are self-employed, you pay the self-employment tax only once when you file tax in April. Does it mean you only get 1 Social Security work credits per year?