I think chasing peak power has gone by the wayside. Back in the days of riding 90” gears and trackstands it was likely relevant. Nowadays that doesn’t really happen much if at all outside of the local level of racing. Bigger gears and speed endurance are what rule the roost in 2021 and peak power is not really that much of an important marker. I’ve seen mentions of top level Olympic riders peak powers ‘only’ being in the low to mid 2kW.
Now if you looked at speeds and times today vs 40 years ago and considered peak power the be all and end all, you would expect to be seeing 3kW being pumped out at the highest levels, but that’s not the case.
IMO get into a seasonal cycle of building strength peferably on the bike/trainer, and then as the bigger events come along work on holding as much of that power for as long as you can. Rinse and repeat each season as you get continually stronger and faster.
But who knows, maybe training and racing principles might be in a very different place in 10 years