You’re comparing apples and reactors. Ubuntu is one of the easy to use distros by design. Distros like that try to keep config file changes and things like that from the user. When that fails, the falling height for users is higher, as they now have to deal with a complex problem. The other ones are designed to be simple and require you to handle potential breaking changes manually by default, which means you’re taught to do these things and won’t be clueless when things get hairy.
You shouldn’t compare Ubuntu to Arch. Compare it to Mint, Fedora, Pop!_OS, …