Technically, yes, the "right to repair" isn't specific to socketed components. But socketed components do make it easy to repair a device and is the obvious way

Technically, yes, the "right to repair" isn't specific to socketed components. But socketed components do make it easy to repair a device and is the obvious way forward to make devices easy to repair and reduce waste (in fact the EU actually funded a project to create a mobile phone with more reusable components - http://www.puzzlephone.com/ http://www.puzzlephone.com/ - and some startups are also trying to do the same with laptops - https://frame.work/blog/introducing-the-framework-laptop https://frame.work/blog/introducing-the-framework-laptop ). As for soldering things on your own, today's modern electronic manufacturing techniques make it a very difficult task.