Which basic Agile quality practice reduces bottlenecks and ensures consistency?

According to the SAFe Agilist 6.0 domain of Built-in Quality, this practice reduces bottlenecks and ensures consistency by:

Encouraging teams to share responsibility for the quality of their work products

Establishing common standards and guidelines for coding, testing, documentation, etc.

Enabling teams to collaborate and coordinate across domains and dependencies

Promoting a culture of continuous improvement and learning

https://scaledagileframework.com/built-In-quality/