Grab drivers in Vietnam are taking action over concerns about their earnings. They have called for a two-day boycott of the app, citing falling earnings as the reason. The boycott is a response to the drivers' dissatisfaction with their current financial situation.

Further details about the boycott and the drivers' concerns are available from the source. The action taken by the drivers indicates a level of discontent with the current state of their earnings from the app.

The source provides more information about the situation, including the context and potential implications of the boycott.