Hello,
The new hashtag icon HTML closing tags </use></svg> are appears in the push notifications.
Android 10
Chrome 108.0.5359.128
MacOS 12.6.1
Chrome 108.0.5359.124
On the images the Test site is the hashtag.
Thank you 
Android 10
Chrome 108.0.5359.128
إعجابَين (2)
I just merged a fix for this:
3 إعجابات