Hummm easy games. I think it depends of their tastes and what they like to do.

I can think of a few games which might be fun, but perhaps she should watch some lets plays to see if it peaks her interest.

Lil Guardsman is a fun game my SO showed me recently.

Stardew Vally

Potion/crafting games are something else, Potionomics might be fun.

Oh point and clicks might be fun too, but I can think of anything outside of Grim Fandango or Monkey Island

Animal Crossing is always relaxing

My SO and I played Persona 5 together too, I played the game while she was my navigatior who made conversation choices.