Sorry, but your statement doesn't make sense at all. Please elaborate.
People who complain about not being able to walk after 'leg day' are just training their legs only once per week. If you do full body workouts, you won't always have DOMS like it was your first time working out. Also, splits are horrible for beginners as beginners need their CNS to adapt by doing something over and over again. It's not because elite bodybuilders or powerlifters train with splits that you should do too, they need that much rest because they are lifting extremely heavy weights and their muscles can't adapt as fast as a beginner.
If you train 3 times per week and do something like SS or stronglifts 5x5 you should be able to put on extra weight on the bar every time. I'm squatting 100kg after two months, which is considered 'OK'. People who do bro splits don't even reach that weight after a year.
