In the rich world, probably we mostly will have plenty of food -- just not the bountiful variety that was the abundance our advanced societies created back in the days when we valued abundance. We'll pay way more for it, and those who can't afford to pay more will end up having to make do with what they can get -- but citizens of the rich world won't starve.
Elsewhere around the world, though, it will be a tragically different story. In many places, basic foodstuffs are becoming so rare and expensive that they're beyond the means of everyday people (for example, in Nairobi, where black humor memes about measuring cooking oil with a syringe have become popular: https://www.npr.org/2022/04/28/1095396921/the-rising-tides-o...).