Microfrontend
Microfrontends (singular: microfrontend) is a front-end web development pattern in which a single application may be built from disparate builds. It is analogous to a microservices approach but for client-side single-page applications written in JavaScript. It is a solution to de-composition and routing for multiple front-end applications. Microfrontends (MFE) can be built using the following three approaches:

 With module federation
 With Single-SPA
 With Web Components
 With iFrames

Companies that use microfrontends are IKEA, Spotify, etc. For Webpack this concept is referred to as module federation. See also
 Microservices
 Software modernization

References

Software design patterns
Architectural pattern (computer science)
Web services