Can someone explain the following below to me: Unless you're taking up actual residency there, I don't see what the appeal is? Does e-residency equal residency

Can someone explain the following below to me: Unless you're taking up actual residency there, I don't see what the appeal is? Does e-residency equal residency for tax purposes? If you're going for low taxes, there also are alternatives in the EU that offer lower taxes. Aside from that, what's the point?