https://dev.to/saravanasai #what-is-atomic-lock What is Atomic lock? Atomic lock is not a term directly related to a laravel itself.The term is actually from database.I hope you have know about ACID principle in database.They are Atomic lock comes under the first property atomicity.To learn more about https://www.ibm.com/docs/en/cics-ts/5.4?topic=processing-acid-properties-transactions.
example: 2-orders may placed but we know that only 1 left in stock.
For this kind of solution where the Laravel Atomic lock come into play which help us to handle this problem like pro.