I don’t know why people have to be so unpleasant and start playing Top Trumps - she’s not saying she has the hardest situation imaginable, just asking for tips on how to be organised and make the most of the time they have.
And I’m sure that many who are working full time with kids don’t have two hourly wake ups to deal with if their kids are older and don’t have any additional needs.
My twins are 4 and both have disabilities and I have ME and two conditions which cause severe pain, plus my twins don’t sleep well. They started school after half term and there’s no way I could manage working full time - I have a very part time job, rest of the week I do housework, work on my own small business and rest. My capacity is much lower than it was before I was so unwell and before I had children who don’t sleep much!
You will adjust somewhat but organisation is definitely your friend. While I’m making their dinner I wash up their lunchboxes and put their uniform on to wash, repack their bags for the next day. Lay out their uniform ready for the morning.
I get up half an hour earlier than everyone else to make lunchboxes and put their breakfast out then DH gets them washed and dressed. I got a magnetic whiteboard for the fridge where I write down things to remember as they come to me - stuff we need from the shop, days I need to send stuff into school, things like Christmas jumper days, appointments etc. I also have Google Keep and can make lists and share with DH for other stuff that needs doing.
Sounds like your DH has an hour to get dinner on and then cleaning which should be more than enough to keep mostly on top of the housework - kitchen one day, bathroom another, living spaces another, your bedroom, the kids room(s) etc. Floors don’t need to be done every day especially if you’re all out of the house most of the time. I do most of the housework in one day a week at the moment, obviously with tidying and wiping surfaces etc each day.
I’m sure it seems daunting to do everything you’re doing now plus going to work every day. Between you it should be fine though - you need to figure out where the priorities are and start from that.