Endeavour has plenty of “beginner” tools, including a kernel manager (literally called A Kernel Manager) and a friendly GUI Welcome app that helps you update your system and your mirrors.
In short, the maintainers have made questionable decisions over the years, and the Arch Linux packages are held back by two weeks on Manjaro for… basically no reason.
If you want an out-of-the-box solution to Arch Linux, just use EndeavourOS.