Not only do they want the product to die, they also make it really hard to repair. Not offering spare parts, except through official repair centers which charge so much you might as well buy a new unit. Not providing any kind of documentation or schematics. Using chips with custom firmware you can’t download anywhere, so even if you were to replace the hardware, without the software it’s useless. Locking off communication/programming ports behind passwords and custom programming software.
This is why right to repair is so important. It isn’t just phones, it’s all consumer electronics. With proper care, maintenance and repair, a lot of devices could easily double their lifespan. This reduces e-waste and saves consumers money, it’s like a win for everyone except for the people trying to sell you new shit.