"""Formats a dictionary of product context data into a Markdown string.

This function takes a dictionary where keys represent product attributes and values can be strings, lists, or other types. It converts this dictionary into a structured Markdown document with headings and appropriate formatting for each value type.

Args:
    data (Dict[str, Any]): A dictionary containing product context information. Keys are attribute names, and values can be strings, lists, or other types.

Returns:
    str: A Markdown-formatted string representing the product context. The string includes a main heading "# Product Context" followed by sections for each key-value pair in the dictionary. Each section has a heading derived from the key (converted to title case with underscores replaced by spaces). Values are formatted as follows:
        - Strings are directly included.
        - Lists are formatted as bullet points.
        - Other types are converted to strings.

Example:
    >>> data = {'product_name': 'Smartphone X', 'features': ['5G', '128GB Storage']}
    >>> _format_product_context_md(data)
    '# Product Context\\n## Product Name\\nSmartphone X\\n\\n## Features\\n*   5G\\n*   128GB Storage\\n\\n'
"""
You should write code starting with:
from typing import Dict, Any

def _format_product_context_md(data: Dict[str, Any]) -> str:
    pass

