What is the architecture of my Node .js / React, Redux application using microservices

I am using in my application:

Backend : Nodejs, Express, Passport js and Mongoose, the project structure is : models with mongoose , controllers and routes. What do we call this architecture ?

Frontend : React , Redux and reactstrap : What do we call this architecture ?

And deployment in microservices using k8s and api gateway.

I need to know what types of architecture(software, application and system) this is ? and what type of design pattern ?

what's the difference between MVC Architecture, microservices Architectur and multilayer Architecture ? Thanks