To make maximum use of EV mode requires diving a little more "ahead" of the vehicle. It is not enough to anticipate traffic lights, you need to anticipate the queue associated with them a bit more so you can stay in EV mode through the light instead of slowing or stopping and then requiring the ICE in order to get up to speed again. Increased trailing distances, while still flowing with the traffic basic speed is the key to higher EV utilization. Same for all other sources of non-mandatory stops like school buses, garbage trucks and left turns from two lane intersections.

Also, be aware of the battery SOC. Using EV mode, in itself, does not save you much becasue the charge has to be replaced. The largest efficiencies are realized when a way exists to replace the charge by regen or by reduced power ICE operation with intermittent electric assist like small hills followed by small valleys. If you plan where the charge will occur as you spend the charge in the battery, you can make selective use of EV in the most efficient manner.

You never want to start down a long down grade with a full SOC as the TCH just has to waste the kinetic enegy available for regen. Likewise, you never want to start up a long hill without sufficient charge to climb it with electric assist if at all feasible because the ICE will need to work harder without electric assist, and thus spend more fuel.

It is the ignorant among us that will eventually destroy us all.