I also think about the 80/20 rule. If friends want to go to brunch, I go to brunch. If I'm out of town on business and a client wants to meet for breakfast, I eat a bit of breakfast. I don't make a big deal about it because my steady state is TRF.

I'll add though, after TRF for years, when I eat breakfast I notice my energy levels are off for the whole day. And, I'm also crazy hungry the next morning. Whereas normally I'm rarely ever hungry.