Steady state currents do matter. Why? Because it does't just represent inputs but also outputs.

For the inputs of newer logic chips, there is practically zero static current. Just a very distinct current spike when the logic level is changed.
But the outputs of new or old logic chips may drive a load that don't just results in a current spike during logic level change, but that sinks or sources current continuously when the output is in a specific state.

When talking about just the circuit family and switching, then newer technologies normally have a higher speed, so they have a shorter current pulse. But the transient current need not be higher because they often have a lower capacitance too. So for logic-level operation, you can normally get away with a smaller capacitor. The spike is fast so you need a low resistance. But the total charge is low, so a small capacitor is enough.

As soon as you do have a distinct load on the outputs, you may need the capacitors to handle way more energy just because you can have a very high current enabled/disabled when switching logic state. Maybe you have 8 LEDs - each at 10mA. Or maybe you have a ribbon cable with low-valued pull-down resistors on the other side.

So as I said - it isn't enough to just look at the technology. The decoupling must look at connected load too when figuring out exactly what will happen worst-case during a change of logic level(s).