No matter what anybody tells you, nobody has more than one set of eyes, ears and hands. With the best will in the world, keeping the house immaculate with small children, requires you to prioritise that over them. It's logical. If you're not willing to do that, then accept it and don't be ashamed of it, I'd say.
My own house ranges from immaculate to a tip in the space of a day, as do most of my friends. Sometimes I'll show up and their houses will be gloriously clean and tidy, other times they'll be a disaster zone. Same when they visit me. It's normal.
I do have a couple of family members whose houses are always perfect. I know for a fact that they prioritise that over their children's development at least some of the time. One has an abusive partner who expects everywhere to be spotless, all of the time. The children have never played with paint, playdough etc in the house. They've been prevented from going on playground equipment in order to keep their clothes clean. They're actively encouraged to watch tv/play on consoles, rather than get toys out. They're fed lots of ready meals, to save and time and mess.
In the other family, the mother is extremely houseproud and it forms a big part of her identity. Her home is absolutely beautiful - always. But I know that when her children were tiny, she used to leave them to cry it out in their rooms with a safety gate on the door, so that she could clean the house from top to bottom every day. They were usually confined to their room except for meals and outings. Whenever I turned up, she'd tell me to nip up and see them. Very sad. She, again, is encouraging of screen time over play - although she wouldn't admit it. Her 10yo has nothing in his - beautifully clean - bedroom but a computer console and some lego ornaments.
If your children are given all day access to sensory/messy play, have little friends over, are cooked food from scratch, are given lots of attention, are allowed to play outside and get messy etc - you are going to have more washing, more washing up, more hoovering, more wiping, more tidying to do, and it cycles throughout the day, so it's constant, not something you could plough a couple of hours straight into and expect to last, and you'll have less time to do it because you're busy interacting with your kids.
However, you'll probably get some posters coming on soon to tell you that they do all of the same things but are just better than you and work harder, which is why you can't tell that children even exist in their house.