NextJS redirect slug wildcard

I'd like to redirect URLs that regex match -\d+ to a URL without that string. This works with the last slug but for the ones prior.

This is my redirect code:

  {
    destination: `/my-path/:slug*`,
    permanent: true,
    source: '/my-path/:slug*(-\\d+)'
  }

This url: http://localhost/my-path/subdir-one/subdir-two-123

redirects successfully to: http://localhost/my-path/subdir-one/subdir-two

However this url: http://localhost/my-path/subdir-one-3456/subdir-two-123

redirects unsuccessfully to: http://localhost/my-path/subdir-one-3456/subdir-two

I thought the * was to match the entire path and assumed the regex to be applied on every route.

What am I missing here?