I think she would be really happy. I am currently using the M2 13" MacBook Pro (8c/10c) and I am really satisfied with it. Out of the 3 games you mentioned I've only tried Sims briefly, but I worked well and iirc it's Apple Silicon native. I haven't tried the other games, but I have experience with others, like CS:GO, Metro Exodus, Minecraft, World Of Tanks, Hades. These all run as well as I would expect, although I am a very casual gamer.
In every other aspect this laptop is amazing. The battery life is outstanding, I charge it every 3 days or so, but if I really wanted to stretch it with low power mode, I could even get 5 days with. (after 2 full school days, albeit lighter ones, in low power mode, I ended the second day, with 73% percent left)
Also, I am using macOS Sonoma Beta and the switching of AirPods between iPhone and Mac is so much faster than before.