I'd also suggest a Steam Deck, but for a different reason. My experiences with switchable graphics (both, nVidia and AMD) have been extremely disappointing. It's quite frustrating to spend €1500 on a gaming laptop, and then constantly facing driver issues, tearing,...

If I were to buy a laptop, I'd therefore also go with an AMD integrated graphics unit, and no switchable graphics. Performance would be comparably bad, but at least an integrated (non-switchable) card works... And now we are at the point of having a dedicated gaming device like the Deck, which lets you have both: A performant enough gaming device, and a laptop that isn't burdened by the price and issues of switchable graphics.