McDonalds did not officially endorse Israel. The franchise owner of all the McDonalds restaurants in Israel did. McDonalds corporate did not approve the message although it seems like it did not really matter what the facts were. (https://www.theguardian.com/business/2024/apr/05/mcdonalds-i...)

yes. prompting listings/apps for finding brands to boycott, one which i use very much: https://www.boycat.io/