This is just a nightmare honestly for non tech savvy individuals. As long as their will not be an easy way like install an app on both devices, scan a QR code to pair them like LNC try to do, it will not be used even if it's by far the best solution, with great articles like yours explaining step by step how to do it, IMO
I will try to do it by following all steps to mentioned but I'm sure I will fail pretty early in the process (can I even try do it on my Umbrel node ?))