You're not gonna see people climbing trees with electric chainsaws for a long time. With current battery tech power to weight is still a decent way off from ICE, especially in applications where weight is optimized for. Sure, most stuff will be electric but ICE will stick around for a long time. Niches with a high cost of labor tend to amplify viability differences. Electric is just easier and once it's viable people switch to it but don't expect it to completely dominate overnight.