Forgive my ignorance, I don't know a lot (anything) about licensing, but I see a lot of comments asking about licensing in particular. If this isn't legal, then

Forgive my ignorance, I don't know a lot (anything) about licensing, but I see a lot of comments asking about licensing in particular. If this isn't legal, then what about icon packs for, for example, VSCode or Android Launchers and similar?