[emptysongglass]

I remember socketed CPUs being a thing on some ThinkPad models.

[twblalock]

I don't remember any laptop ever that could support both AMD and Intel CPUs. The chipsets are different.

[robin_reala]

Mid-90s had both laptops with CPU sockets, and pin-compatible drop-in AMD and Cyrix 486 and Pentium-equivalent chips.