Thank you for reaching out and providing your URL!
It’s great that you have added a favicon; they really help add to your store’s credibility. I was able to test it on my end, and I can see your favicon on my mobile device. Keep in mind it will show differently depending on the browser and the device you are using. You may need to clear your cache/cookies for it to show on your end, as your browser could be pulling old information.
Please let me know if this works for you or if you have further questions!
Unfortunately, I still don’t see anything. I checked on different browsers and cleaned the complete history and it’s still the same.
It may depend on Google, but in the desktop version, Favicon was immediately visible.
I did some further digging into this, and it seems you may need to make changes to your theme code. I recommend consulting with a Shopify Expert. Experts are trusted third-party agencies and freelancers who offer services for Shopify merchants. They will have much more information on why your favicon may not be showing in mobile view and hopefully be able to fix it.
Please let me know if you have any further questions!