Free Software won because almost everyone, especially businesses can benefit from it. who is going to benefit from right to repair besides consumers and small repair shops?
Everyone as well? Lower costs, better looking carbon footprint, longer lifecycles, better secondhand market, more efficient software (if you don’t assume everyone uses a new phone, you design your apps/web apps with a little more care towards performance and battery efficiency), more competition between manufacturers (because it’s not a given that you’ll sell new devices every 2–3 years)…
Probably. I don’t think it’s much more than the cost of shrinking everything down and shaving 1/2 mm off your design or engineering a whole protocol, chips, and software to pair components together and implement “features” at the OS level to disable some things if it detects new parts.