If you have an old linear Alps switch, e.g. with green or yellow sliders, then there’s an LED cutout in the top housing, and it won’t fit a click/tactile leaf. On the other hand, if you have a tactile or clicky switch, you can certainly remove the leaf to get a linear switch. Or if you like the slider color, or the spring, etc., you can mix and match some parts between different switches.
What precisely do you want to do?