The only device I know of that started out on lighting and switched to USB-C was the iPad, and that was specifically because they're pushing it as a "creator" device, for which people needed to be able to plug in things like flash drives, SD card adaptors, cameras, mice and keyboards, etc. There's significantly less drive for those kinds of accessories on iPhone
The real surprise is that the mice, keyboards and trackpads haven't gotten a meaningful update in a long while, so there's no USB-C on any of them. You'd think they would have long ago decided to switch those to USB-C, since the computer ships with a C charger - and because they could justify removing the bundled cables from the packaging.
The new AppleTV remote
> and that was specifically because they're pushing it as a "creator" device, for which people needed to be able to plug in things like flash drives, SD card adaptors, cameras, mice and keyboards, etc.
Apple has sold a USB to Lightning adapter for ages.