I have two GitHub User accounts added to GitHub Copilot App.

I have two GitHub User accounts added to GitHub Copilot App. Both have a GitHub Copilot license provided by different Enterprises.

I have observed that the Copilot App allows to set the "default" user account.

Questions:
- Is the "default" account the one used to consume Copilot credits?
- Is it possible to specify which account applies to which project, so credits for different projects are sent to the right account/enterprise/billing?

---
| Field | Value |
| --- | --- |
| App version | 1.1.0 |
| OS | macOS 26.5.2 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 11 |

No source file or test is named; start by reproducing the two-account setup in GitHub Copilot App 1.1.0 on macOS at the /chat path and inspect the default-account behavior. Done means documenting whether the default account consumes Copilot credits and whether projects can select separate accounts, enterprises, or billing destinations.

Written by the indexing model from the issue text.