Look at this here and the ridiculous extent they insist on "NO, YOU MUST COPY AND PASTE ZEH STYLES!": https://tailwindcss.com/docs/reusing-styles
It's rampant dysfunction on full display, my friend. It's as clear as daylight. Copy/paste is the rookie approach, and Tailwind targets rookies. So it focuses on "it's not your fault, copy paste is good, they... they don't get you" approach and then throw @apply in there as some half-baked solution for those who are starting to wake up from the Matrix.
You are in an abusive relationship. Seek counsel.