Comment by dannyw

Liquid Glass changed dimensions and viewport measurements for fixed position elements, amongst a whole host of positioning related bugs:

https://stackoverflow.com/questions/79753701/ios-26-safari-w...

Many of the bugs were fixed in 26.1, but still, I had to fix it to use it.

I was surprised that not much of the entire web was broken, but a cursory search of commits showed that the WebKit/Apple team took the approach of coding in site specific hacks for popular sites (eg instagram, google search!) for iOS 26.