Looking through the article, it doesn’t suggest this is a new event. The photo is from October last year, where Israel was previously accused of using white phospherous, alongside an interview with a farmer who professes the same:
He says Israel fired white phosphorous shells at his land in the village of al-Bustan every day for over a month, robbing him of breath, and his livelihood.
So, not again, but more confirmation of the same previous event. Also, I wasn’t aware of it being done over Lebanon in October, and not every day for a month, I only saw the stuff about them using it one time in Gaza.