What can the house of commons do that the house of lords cant?

The House of Commons can initiate and approve financial legislation, such as budget bills and tax proposals, which the House of Lords cannot do. Additionally, the Commons has the power to hold the government accountable through votes of confidence and can ultimately force a government to resign. Furthermore, the Commons is directly elected, giving it greater legitimacy and authority in representing the electorate compared to the appointed members of the House of Lords.