Can you use a keyboard key from any laptop to replace anther?

sure, why not? just check if it’s the same type of “connection” (some keys attach differently)

good luck and happy tinkering

I guess that depends on the manufacturer.
You said “Windows?”

You could try. It might work. But there isn’t a standard for how keys attach to the keyboard. It might work, it probably won’t.

Just a thought. It seems that there would be a standard to make things easier.

The Sibling question ->>>>
has some good answers.

As long at they’re both USB connected.