Honestly, I thought it was so Isntreal could try to get Lebanese to return from where they’d evacuated so that the IOF can start bombing civilians in a few weeks when they decide Lebanon is a threat again (based on the ceasefire language mentioned in a CBS article)

“Echoing remarks from earlier from Netanyahu, Mr. Biden said if Hezbollah or anyone else breaks the deal and poses a direct threat to Israel, then Israel retains the right to self-defense.”

https://www.cbsnews.com/news/israel-hezbollah-ceasefire-netanyahu-war-lebanon-gaza-hamas/