They did not specify the extent of the potential damage, but since they requested that funds be moved to a new wallet, it implies the hacker has gained full access to the seed phrase.
Does the warning cover Binance app and all associated services?
This is the also stated in their warning;

I didn´t put it in thread earlier. Now i see that I posted 2 same images

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From this warning it is pressumable that all apps, credentials, passwords, seeds on designated iphones or ipads can be breached.
How I see it Binance didn't state that the breach has happened but with this warning they are for sure exposed and I would presume that all associated services would be compromised if this app FomoPeek is installed.