Unlike the first OP, I don't get involved with the PTA and we don't really email with the school at all. I don't understand the emailing constantly with school thing, but to each their own and I'm sure there's a valid reason for those that do.
We, like the person you're replying to, also pay for a cleaner, but that's for deep cleaning and only happens once every two weeks. I've somehow settled into a routine that has me doing basic cleaning right after dinner.
My wife and I share chores and swap out tasks evenly. This allows one of us to clean and have some "me" time while the other bathes the kids/does bedtime, before we meet together and hang out for a bit in the evening before bed. Sometimes during the week we'll have a friend over during this time. Our weekend hours are limited in the evenings, because I have to get up early for work, but we make it work.
On the weekends, we are good about balancing our fun time. Grandparents come over and watch the kids as we go out together, or, just for one example, my wife will handle dinner/bedtime (or breakfast, if I go to something dance-musicy that runs late) while I go out to a show. I'll do likewise for her if she wants to go out with friends.
Also on the weekends, we often meet up during the day with friends of ours who also have kids. We get to hang out with our friends while our kids play together.
Additionally, my work has a gym and my work schedule is earlier than most - 6 to 3PM. I work out before and after work, and then go pick my kiddos up, make dinner and play with them after cleaning. I also chose a job that insisted they prioritize family and work/life balance and I leaned into that, and they leaned back! No notifications hit my phone after 4PM and in the four years I've worked here, I have never had to work a weekend nor been pressured to do any work outside of when I'm at the office.
My wife is also super nice about letting me go on 3-4 day backpacking trips multiple times through the summer.
We prioritized finding some time for us for our own sanity, and kinda naturally settled into this schedule. It might not work for everyone, and I feel very fortunate to have space for us.
Edit: Don't get it twisted, though... I'm tired. I can't get a full 8 hours of sleep on a regular basis, closer to 7, sometimes a bit less. The daytimes are also constant in order to ensure we get time at the end. It's hard.
Edit 2: We also prioritized ensuring our kids were great sleepers from day one. They go down for bed anywhere between 7 and 8, and don't wake up until ~7AM. We're also very lucky in that they've never really come into our bedrooms in the middle of the night and stay in their beds until we get them in the mornings. I don't know how we got fortunate there, but /shrug.