How does an Advance Premium Tax Credit work?

Hi!

How does an Advance Premium Tax Credit work?

 

Context: I am a US citizen who recently moved to the US last Aug 2022. I've been living and working overseas ever since. I purchased a Short Term Health Plant from United Care and on my bill they are deducting an amount and the line item is Advance Premium Tax Credit. I was employed overseas by a foreign company from Jan 2022 - Mar 2022 only and I've been unemployed since then.

1) Will I need to pay the total of the amount when I file and pay taxes next year? Last year i filed taxes and had a foreign earned income deducted when i filed my income tax via turbotax

2) Will I need to show a proof of my unemployment?

 

Thank you so much!