The amount of performance you lose is negligible compared to the amount of performance you lose in 5 years when the laptop's processor is out of date and there's barely enough ram to run a semi-heavy task.
An SOC is a bad idea for laptops in my opinion, it just makes it harder to repair and less modular. I understand that it helps to compact the device, but it should only be used in phones if at all.
I disagree. SoCs allow for lower power consumption and a larger battery. They definitely have disadvantages but I don’t see ARM computers ever using anything but SoCs.