.... as you're puppy gets older she will avoid stepping in her poop. Dogs don't like to step in poop or pee. You should try a different dog food if the puppy's poop is very soft and mushy. The ideal poop is ... Firm but Soft, but Not Too Soft.
When Patti poops, she does a little jump away from it then turns around to check it out. As a puppy she stepped in her poop a few times.
As the puppy get's older she'll, also, have fewer diarrhea issues. Everything is new. The food. Things she chews on. You'll learn what to NOT give her and her system will mature. And, typically diarrhea requires changing out and washing the potty tray grate.
Patti isn't a poop eater, although, she has occasionally given it a try. As a puppy on walks - in the mountains - she'd pick up Poop-sicles (Frozen poop) and wanted to carry them around but didn't eat them. Poop-sicles are a Favorite Thing for many dogs to play with. There is lots of different animal poop on mountain walks. I was constantly taking them out of her mouth.
No telling what kind of diseases wild animals had. All dogs are interested in other animals poop and what it smells like.
You'll probably get to where you're not so particular on how clean the grate is. Everything is new and there's an adjustment period. If Patti's poop is a little soft, I just wipe it off the grate with a tissue or a wash rag and while there might be a little bit of dried poop on the inside the grate, I normally leave until I change out the litter.