Read Paragraph 1 again. Clearly to me says By signing this MOU the parties agree to immediate and permanent. From now on not to initiate war or military operations and refrain from threat or use of force. Last sentence says final deal will confirm so confirming what is now
The United States of America and the Islamic Republic of Iran and their allies in the current war, by signing this MOU, declare the immediate and permanent termination of military operations on all fronts, including in Lebanon, and undertake from now on not to initiate any war or any military operations against each other, and to refrain from the threat or use of force against each other, and ensuring the territorial integrity and sovereignty of Lebanon. The final deal will confirm the permanent termination of the war on all fronts, including in Lebanon, and other provisions of this paragraph.
If this is a final agreement, I don't see it lasting. I was under the impression these are conditions yet to be finalized. Nothing is worth the paper it's written on until the senate approves it.