3rd party replacements should be allowed but the firmware should allow me to check if any third party replacements have been made. I’d like to know when buying second hand phone if it has genuine parts. Third part replacements are usually of much worse quality (I tried that many times e.g. with third party toners for HP and every single time they turned out to be a waste of money).

There are things in life where amount paid is far from top priority, and phone is one these days. With sums we talk about, I just don't care anymore, and Samsung I have now is even more expensive and more wasteful.

Re wastefulness - a decent laptop causes 10x more pollution to manufacture than phone. Desktop PC 10x that. TVs. Cars. Clothing. Phones are very much down a very long line of higher priority targets for eco friendly approach.

I personally don't care much about $ but many probably are. I care that the manufacturers don't work with user orientation in mind and instead take advantage of them. I don't want to be a customer here. Replacement parts are possible and we maybe need regulation on that front to reduce waste. I doesn't matter if other devices are worse.

Other example have a longer shelf life or are at least repairable without being tied to a manufacturer. Notebooks have similar problems and the critique can be transferred here in a similar way. I see synergies in possible rules here of course.