How can I retrieve my messages from the iCloud
I accidentally deleted a conversation in my messages and I want to retrieve it. How can I do that?
As per this link https://help.apple.com/icloud/#/mm0de0d4528d
Messages are stored on the device instead of in iCloud.
As per this article https://support.apple.com/en-in/guide/messages/icht1035/mac
Delete a conversation: Select a conversation, then choose File > Delete Conversation. Or, if you have a trackpad or a Magic Mouse, you can also swipe left with two fingers on the conversation in the sidebar, then click Delete.
If you use Messages in iCloud, deleting a conversation on your Mac deletes it from all your devices where Messages in iCloud is turned on.