Not my experience for the record. I use Tailwind in my side project, and it is exactly as convenient as it sounds to write my styles directly into HTML rather than think of a class name, add it in HTML, switch to the proper CSS file (or create it if it doesn't exist and make sure it's part of the build step), forget what name I had decided on, check the original HTML to remember the name, then go back to the CSS file and write the class name and then finally within that block add my style.