WCAG for content that is only shown?

[kengdoj]

Thank you for this very needed guidance. Question about this part -

4.1.1 Relevance of the Web Content Accessibility Guidelines
Any prepared content (e.g., documents, presentation slides, prerecorded multimedia) that is shared with or shown to meeting participants is subject to the Web Content Accessibility Guidelines (WCAG). Policies typically specify that documents, presentations and related materials should conform to WCAG 2.1 Level AA.

If content is only shown (not shared) in a remote meeting, participants are not interacting with the content directly so it seems that only some WCAG SCs should be required - like contrast. Requiring alternative text wouldn't be useful if the file is not shared.