Competition for YouTube Premium (ad blockers).

This is the exact device I was thinking of when I wrote my comment.

We could have a compact version, say 3.5mm, with different segments to carry different signal types. More segments can be added to allow for additional features. It could work with audio, video, power, and other data transfer. That would fit ideally into a phone.

relevant xkcd

The Steam Deck adds something incredibly valuable that the PC market has never had: a consistent target spec for minimum hardware requirements. Upgrading every couple years would create confusion for which version for developers to focus on. They are treating it like a console, not a PC.