PPL instructor with 1500 hrs + FI time;
I'm sure there is the odd student who will benefit greatly from using a sim in the early stages of their PPL; but I never met that gal/guy...
...I did meet plenty of people that had used flight sim or whatever, and whilst there were top marks for enthusiasm, their utter obsession with staring at the dials prolonged their training; it took waay more time to get them out of that habit than it should have. The early phases of PPL training centre around attitude flying; this is crucial. If you've already gotten into the habit of flying on simulated dials, it will most likely be harder to learn.
Sure, you can learn about radios/mixture controls etc. But the utility of doing that on a computer screen is no more than reading about it in a book.
Leave it until you're doing instrument flying. Before that, don't. Plenty of other things you can be usefully doing to help your training along
