I’ve noticed that people today often bristle at any suggestion that one connect a device to a phone or computer with a cable – on Reddit, one will often get downvoted for this. Apparently, a lot of younger people are hardly aware this is possible and it strikes them as overly complicated or for old people. People want to wirelessly transfer stuff, and what the OP linked to is a popular way to do that with Kobo.
I'm old enough to have used computers before having any Internet, and in 2026 the idea of plugging in devices to transfer files to it does feel like a fiddly relic of the past to me.