I need help with my Favicon on wordpress

Seeking an experienced WordPress developer to resolve a favicon issue affecting Google Ads: the favicon displays correctly across the site but fails to appear within Google advertisements. Tasks: diagnose the root cause, implement a robust favicon setup compatible with Google Ads (proper file formats, sizes, manifest, and meta tags), ensure correct caching and CDN headers, validate via Google tools, and provide brief documentation of changes. Deliver a reliable fix and verify appearance in ad previews.