Part of it is hardware too. Only the newest routers do gigabit over wifi. If most of your devices are wireless, you'll need to make sure they all have wifi 6

Part of it is hardware too. Only the newest routers do gigabit over wifi. If most of your devices are wireless, you'll need to make sure they all have wifi 6 or newer chips to use their full potential. Even if upgrading your router is a one-time cost, it's still enough effort that most people won't bother.