With DDR5 RAM prices skyrocketing, some mid-range laptops could soon ship with budget-level specs. TrendForce expects companies like Dell and Lenovo to stock more notebooks with 8GB of memory. These reasonably priced options may no longer handle intense office and gaming tasks.
IGPs are very dependant on memory speed. Many uses gains from faster memory speed (but I can’t give you one out of memory), but most games gains more from memory latency than raw speed (with some exception, like Stellaris).
Usually, if your app is CPU heavy, you’ll gain from RAM speed.