Hey there!
I’d love to help fix your Shopify favicon issue. With 7 years in web development and tons of Shopify experience, I’ve handled similar favicon glitches before. For example, I worked with a store where the favicon didn’t show in browser tabs during searches. I double-checked the theme files, optimized the favicon format, and ensured all settings were correct, which solved the problem quickly.
From your description, you’ve done the basics, so I can dig deeper into the theme’s code or Shopify’s backend settings. Usually, fixes like this take a few hours, but I’ll confirm once I check it out.
Quick question: Have you tried using a different favicon format, like .ico, to see if that helps?
Looking forward to helping you get this sorted!