Favicon missing for some devices

I recently added a favicon to my WordPress Twenty Twenty Four theme and noticed that when saving my site as a bookmark under iOS, my favicon is simply a black background. I believe this is related to the image being a PNG with a transparent background but nonetheless, I decided to check my site at https://realfavicongenerator.net/favicon_checker?protocol=http&site=leecosta.com and it seems that the theme is not adding the tags for some browsers.

See the link above for the missing browsers. Any ideas?

The page I need help with: [log in to see the link]