Microservices, aka Microservice Architecture, is an architectural style that structures an application as a collection of small autonomous services, modeled around a business domain.
In layman terms, you must have seen how bees build their honeycomb by aligning hexagonal wax cells.
They initially start with a small section using various materials and continue to build a large beehive out of it.
These cells form a pattern resulting in a strong structure which holds together a particular section of the beehive.
Here, each cell is independent of the other but it is also correlated with the other cells.
This means that damage to one cell does not damage the other cells, so, bees can reconstruct these cells without impacting the complete beehive.
Here, each hexagonal shape represents an individual service component.
Similar to the working of bees, each agile team builds an individual service component with the available frameworks and the chosen technology stack.
Just as in a beehive, each service component forms a strong microservice architecture to provide better scalability.
Also, issues with each service component can be handled individually by the agile team with no or minimal impact on the entire application.