Is there any selector or tag that is present in “the content” by default?

I need to exclude an element by selector or by element name from widow word prevention (preventing single word rows) that is done by a plugin, in the plugin settings.

But the plugin docs state:

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So I cannot use any selectors or element names in my HTML to exclude a post entry title that is fetched by a grid, to de-widow it or to exclude it.

Is it possible to add a span or other tag via the the_title hook so that it will be present in “the content” passed to the plugin, so that I could exclude the element from widowing?

Are are any default selectors or elements already present in “the content” that I could use to exclude the element, which is the post title?

Thanks in advance!