personally for longer outside rides I like having a water bottle and a fuel bottle (lately its been Gu Roctane) and some real food in jersey pocket. On these longer adventure rides I put Roctane powder in small zip loc bags, two bottles worth will fill a small bag. It also makes the “water refills from a fountain at park” more palatable. Drink mostly water for the first hour, unless I start going hard from the start. That has worked well for me over the last 4 years but we eat a lot of fruit and veggies in this house. For local workouts up to 2 hours, I do my workouts in the late afternoon and time meals/snacks around the workouts. So I don’t bother fueling. Yesterday it was 92F at 5:30pm start (electrolytes and hydration!), it was an easier 90-min / 1000 cal ride and came home and ate dinner within first 30 minutes. That strategy has been working well over the years as my FTP has been in 220-280 range.
p.s. we have a lot of Tupperware and there are usually leftover veggies and rice/bean/protein mixes in the fridge just in case dinner is late. If not I bought some ‘cooks in 60-90 sec’ pouches of rice/kale and black beans and Indian Dal potatoes and lentils at Costco.