Maybe I just do not understand the functionality correctly, maybe this is actually really bad design:

I want to delete specific emails from a thread and keep some others in the folder where they are, but if I delete one, it always moves around the other mails to this folder as well.

If I for example have two mails in a thread in the inbox, I want to delete one, and later move one into a folder, then it directly moves both into delete when I delete one, and also moves both from the bin If I want to archive one.

I am definitely clicking on one specific mail, not the entire thread. Bad design maybe? Me misunderstanding?