How can a selenium test be ensured only applies when a community profile is deployed?

The correct approach to ensure that a Selenium test only applies when a community profile is deployed is by filtering by profile through Metadata Name. This method allows for specific tests to be associated directly with certain profiles, such as a community profile. By applying this filtering mechanism, you can dictate that the Selenium tests are executed exclusively in the context of deployments related to that particular profile. This ensures that the tests are relevant and focused, providing more accurate testing results based on the associated deployment context.

Implementing a global quality gate might impact multiple tests or deployments across the board rather than targeting a specific profile, and setting a trigger for all profiles would lead to broader execution, counter to the requirement of targeting just the community profile. Lastly, while using an external testing framework can enhance testing capabilities, it does not inherently address the need to limit test execution to specific profiles without additional configurations. Thus, filtering by profile through Metadata Name is the most effective method in this scenario.