Starbucks hasn’t been decent for a decade, and it was debatably decent before then - you either liked their coffee or didn’t. I have definitely noticed a downturn in their coffee quality. Bland and indistinct. Same with Dunks, they used to have a distinct flavor, but that’s gone in favor of a watered down generic coffee.
They’re both suffering from enshittification, where prices go up, variety and quality go down in favor of propping up the quarterly report.
Anyway, point being, corporate coffee chains suck. Just buy from a decent local shop. Coffee and pastries, or even a real decent breakfast sandwich, can be had and taken on the go. Taste way better and supports a local business.