Thanks, but I don't use e-readers as they are not available here.
I've been using MoonReader for many years now and settled on pretty good parameters that make the reading experience very comfortable on both my phone and my tablet.
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.
On my Kindle I use KOReader Zlibrary plugin which allows you to download books from within the reader. It's more convenient then any send-to-kindle workflow.
I agree that a USB cable is the most practical option. However, the aforementioned site is useful in a specific scenario: if your Kobo is very old, macOS won't recognize it.
I've been using MoonReader for many years now and settled on pretty good parameters that make the reading experience very comfortable on both my phone and my tablet.