Hate to be the bearer of bad news. This item has been declined. There will be no work to hide or remove the reply button.
As many people have commented, a big ask is to help improve how people distinguish between giving a reply and starting a new message.
For that the focus will be on this item. “Better visual delineation between `Reply` and `Start a new conversation`”
This item is still under consideration by the feature team.
Yes its needed in Windows also....Anonymous commented
Yes something that persists until you acknowledge.
This feature is still being reviewed by the feature team. No decision has been made yet. I’ll keep you posted.