There's still a cap on growth. Apple is running into market saturation for phones and eventually will land in a situation where the only way it can sell more phones is by selling the same consumers newer/more expensive phones. To achieve this they either need to reduce quality so devices wear out or artificially prevent prolonged use; either scenario results increased production of e-waste.

Ecosystems have limits; you can't grow past the absolute maximums of supply and demand.

We only have so many minerals and so many humans which means that growth has hard caps. Even if we manage to colonize the solar system the same cap will still exist on humans and minerals. Eternal growth is demonstrably false and if we ignore these bounds then we encourage companies to grow through increased generation of negative externalities.