With a 50-34 and a 11-30 there are two nightmare mode climbs where the gearing is essentially insufficient. Both are over 20% and concrete instead od asphalt and my cadence falls to 40ish.
My solution is to do them on my gravel bike which has lower gearing. At the ends of the climbs there are gravel bits, anyway, so that makes more sense.
There are a few road climbs with really steep ramps but I wouldn't want to lose the nice tight spacing of the 11-30 cassette which in 11 speed is really perfectly balanced.