In case you hadn't heard of Framework, they're making modular laptops with the intention of reducing e-waste.
Frameworks computers are expensive, you aren't reducing the e-waste because on amd ryzen ai laptops the ram is soldered like in the other laptops from other manifacturers
Repairable laptops don't reduce e-waste. You replace the mainboard and then what? You have a spare mainboard that sits there collecting dust. The best way to prevent e-waste is to build durable laptops that last a lifetime. Like Dell, HP and Lenovo have been doing for years (while also being very repairable at the same time).