"differently from what" is a grammatically correct phrase and can be used in written English.
It is typically used to compare or contrast two things or situations. Example: She approached the situation differently from what her boss had instructed her to do.
Conversely, peer pressure effects may have driven users to express a certain sentiment online even though they personally hold a different opinion (and behave differently from what one would expect based on the expressed sentiment), leading to false positives.
'some of the witnesses testified differently from what they testified previously.
But some researchers say leptin may act differently from what was originally thought.
She reacted completely differently from what Mr. von Trier expected, emanating compassion instead of rage.
"We in the legislature get to rewrite the law when the court interprets it differently from what we intended".
When I organised the World Cup in France, we did [things] differently from what we proposed in the bid".
How has Hong Kong's future turned out differently from what you imagined in 1997 in helping with the handover?
I'm just saying, I will be saying words that are written totally differently from what I've said.
Listening to Lehrer, you realize things have turned out very differently from what was imagined back in the 1960s — and yet his commentary still feels somehow fresh.
Kathlyn Joy Gilliam and Lorraine Parson thought differently from what they had read in black history books, and longed to visit.
If these magnified settings led Ms. Graham to project differently from what she does when she performs with a pianist, she made the transition beautifully and convincingly.
