Keep page publishing and media delivery distinct
WordPress can be the right place to publish a support article or product guide without also becoming the video delivery stack. An embed lets the page provide the explanation and context while a suitable media service handles the player, processing and delivery. The right approach depends on traffic, access, the site's infrastructure and its maintenance resources.
For a knowledge library, use a maintained source recording across relevant articles instead of uploading independent copies to each page. Keep captions and supporting documents with the source, test the mobile experience and review the embed when a procedure changes. This helps the same approved explanation serve customers, employees and partners consistently.