JSDoc @param does not work for function variables

TypeScript Version: 3.5.1, 3.7.5

Search Terms: jsdoc, param, variable, function

Code

function makeFoo() {
    return (x : number) => {}
}

/**
 * @param x - Comment
 */
const foo = makeFoo();
foo(/* No comment in hover */);

/**
 * @param x - Comment
 */
function foo2(x: number) {
    
}
foo2(/* Comment in hover */)

Expected behavior:

Actual behavior:

Playground Link: Playground

Related Issues: Couldn't find any

For my use case, I use factories to make functions a lot.

export const lPad = makeOperator3<string, bigint, string, string>(/*args*/);
export const rPad = makeOperator3<string, bigint, string, string>(/*args*/);
export const lTrim = makeOperator1<string, string>(/*args*/);
export const rTrim = makeOperator1<string, string>(/*args*/);

And I'd like to add JSDoc to these variables, because the parameter names aren't very descriptive, by themselves (left, mid, right, arg, etc.). But it seems like the JSDoc for @param does not show up in hover on VS Code and the Playground.