Or require licensing, like is required in a lot of places for gas or mains electricity work. I don't mind some licensing required to ensure people doing repair

Or require licensing, like is required in a lot of places for gas or mains electricity work. I don't mind some licensing required to ensure people doing repair work have some minimum level of competence at the task, it just need to not be in the control of the manufacturers. Right to repair for most people is about the right to go to a repair shop of their choosing, not doing the repair themselves, in practice.