The opposite is true here actually. The less trained you are the easier it is for you to gain muscle and lose body fat at the same time.

It's not that difficult for a newbie to do, there's a reason it's called noob gains, usually the first year of weightlifting you can see insane increases in muscle mass that you just won't see on someone who is better trained and closer to their genetic maximum.

Jeff Nippard recently did a year long program with his untrained, overweight brother and put it all up on youtube.