When I think of extremely frugal yet fully functional, feature-packed distros, MX Linux and AntiX come to mind as strong contenders. MX Linux offers multiple desktop environment variants, while AntiX adheres to its philosophy of being extremely resource-conservative. Additionally, MX Linux has a distribution for best, medium, and lightweight use cases. However, if you’ve used MX Fluxbox, the version optimized for older systems, it looks exactly like AntiX, which can create confusion. The resemblance is due to MX Linux borrowing multiple elements from AntiX, and both are derived from Debian, which raises doubts.