That would be too far fetched in reality.
They should at least make it easy to buy a genuine battery over that lifespan. Nobody should have to browse eBay & AliExpress for a replacement component that could theoretically explode.
Manufacturers should also be forced to promote battery recycling practices & initiatives too. They are tossing endless amounts of them onto rubbish piles via planned obsolescence and yearly updates.
Who is this for really though? Any person installing roms is clued in and knows what they want. This “stable” author’s custom-rom credentials should be drop kicked into the sun.