Is universal login suitable for micro apps trends?

General
#1

Is universal login https://auth0.com/docs/universal-login suitable for micro apps trends, meaning having many domains names, and subdomains, that work across web sites, pwa, etc, that look as one big system.

And if is, is the free plan support this in order to test?

how-to-simplify-application-usage-and-deployment-with-microappsfinal.pdf (9.3 MB)

#2

This could be extended to "probably " to a micro apps by third party vendors to build big apps as e.g; lego blocks to build anything.