Unicode characters broken in Safari?

In my navigation, I have been using arrows for my 'a::before' tag. Respectively a::before {content: "\2197\fe0e";}

This was working perfectly when I set up the website last fall, but for some reason it’s not gelling in Safari anymore.

It still works perfectly in Chrome, as shown in screenshot – but in Safari the arrows are invisible.

Has anyone had similar issues with special characters in Safari lately, and know if there is any way to resolve this?
Screenshot_2024-01-18_at_10.32.24.png
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