The small carry-on is still free, that part hasn't changed. But here's what everyone's missing: Ryanair's gotten really strict about what "small" actually means. They've tightened up their size limits and now they're actually measuring bags at the gate. If yours is even a centimeter or two over their specs, they'll try to charge you or gate-check it. I'd grab a measuring tape before your trip and verify your bag fits their current dimensions - don't just assume it worked in 2024.
The other trap is that a lot of travelers mix up what they're allowed to bring. You get one free personal item plus the free small carry-on, but people show up with both at full capacity and act surprised when staff says one has to get checked. Double-check the exact dimensions on their website right before you book, because they do update this stuff and the confusion online might be from folks referencing outdated info or different airlines' policies mixed together.