And get at least 16GB of RAM. Decent amount of laptops with better iGPU have it soldered to the motherboard, so not upgradable.
Not all mobile 11-14th gen had Iris Xe - you can look them up on Wikipedia and I wouldn’t go lower than 80 EUs. You should be able to find more used Intel laptops than AMD.
I have i7-1165G7 (96 EUs) and it’s fine for older/not demanding games - I played Cities Skylines 1 on my laptop and it was playable.
PS: last time I checked I had better FPS on Linux than on Windows 10, which might be related to how Intel drivers and dxvk handle DirectX9



Not quite, Iris Xe is a GPU architecture and is quite distinct from earlier Intel HD and UHD graphics, which was still present in some Intel 11-12th gen mobile CPUs. They basically created a new architecture, and that’s what powers current Intel Arc GPUs.
Iris Xe on Wikipedia
I’m not sure about the branding of the devices, but the iGPU performance is hugely dependent on the memory boundwidth, so the same iGPU would perform worse on a single channel than dual channel and the best performance should be with soldered LPDDR*x memory.