Add a healthy number of inital e2e tests (#49338)

Summary:
Pull Request resolved: #49338

This doesn't cover all cases, but is a good start.

Where relevant, I call out inline places where there are KPs with LogBox that will be fixed separately.

## Changelog

Changelog: [internal]

Reviewed By: rubennorte

Differential Revision: D69443040

fbshipit-source-id: 7281f30aa705ae812d5b5f5f9ad03b37358de059