>Forcing a private company to modify their product

You have it backwards. The consumer is the one who pays for the product, he's the ones who should get a say of what does or doesn't run on it. You would not accept the same restrictions of any other kind of device. You would think it's an overreach for a printer manufacturer to design its printers so they only accept ink cartridges it approves.

Yes - and the consumer is choosing to buy this product. You can't claim that the vendor should change the product after it has been purchased.

No I don't think it is overreach, I think it is good business. Other institutions (usually, ideally) put constraints on capitalism, through e.g. mandating USB-C, which could also be applied to printer cartridges. A printer company could even do a Patagonia, and make the most environmentally friendly, reusable, printer system available and make it part of their branding.