I've never really thought of it as balancing things tbh. I've had dogs longer than my DH, my business, etc. so they just kind of fit the other things in vs. the opposite and I've never known anything different!
The vast majority of my friends are dog people, or at least people who enjoy activities where dogs can be included easily (hiking for example, which means socialization for me and exercise for the dos so it's a major win-win), my leisure activities are dog-centric (dog classes, trials, being outdoors) and always have been. Seriously, my first trips as a person with a license were to the pet supply place and to go hiking with Maggie. LOL
DH and I do try to plan non-dog time, but this is usually lunch or dinner out, movies, wine tastings, etc. so not hard to fit in between the dogs needs. DH and I do have divergent activities as well - this means there's not much crossover on the weekends, but that works fine for us.
All that being said, I also expect my dogs to be able to handle my often wonky schedule (home all week one week, 10 hour days the next, no set schedule). They get fed at random times so they don't get upset if I'm home late, are let out in the yard as needed if I'm home but are able to hold it for 8+ hours just in case, have been taught to chill in the house regardless of how much or how little exercise they've gotten, etc.
Despite being "high energy herding breeds" my pack really is pretty low maintenance from my perspective. Maybe my perspective is weird, but for the most part I don't have to consciously balance them to keep everyone happy.