[<][<=][=>]GFM extensions to CommonMark

GFM extensions to CommonMark
    Tables
    Checklists
    Strikethrought
    Autolinks
    Disable HTML tags
    Footnotes (no GFM standard)
    Syntax highlighting
    YAML Metadata (unsupported)
    Emojis (unsupported)
    generated footnotes:

[<][<=][=>][*]

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Disable HTML tags

The code:

<strong> <title> <style> <em>

<blockquote>
  <xmp> is disallowed.  <XMP> is also disallowed.
</blockquote>

Is disabled:

?