Fictional illusion powers and the limits of deception

What practical uses could the illusion powers shown in Azur Lane have?

They could deceive and confuse, but the possibilities depend on whether they alter perception, create constructs, or allow physical interaction.

Illusion powers could deceive or confuse an opponent, but their practical use depends on the rules of the fictional setting. Making someone perceive something that is absent differs from creating a visible construct. An illusion solid enough to interact with introduces another set of possibilities. The answer therefore separates the general aim of deception from the particular abilities a story grants its characters.