Online platforms

I think it means there is a lack or missing of spoken communication that could provide clarification of what one’s thoughts , wants, needs, expectations are of whatever topic. The availably to give clear reassurance, with validation and understanding. To make sure each are fully aware leaving no room for any misunderstandings.

I think It means you’re not telling one another your thoughts and feelings and not talking about your relationship

I'd say "lack of transparency".🤷