EndeavourOS is described as 'Are you that distro-hopper that always have been curious to try Archlinux, but aren’t confident enough to do the install process and dealing with bleeding-edge releases after install, or are you already familiar with Archlinux, but you’re looking for an express install with a' and is an app in the OS & Utilities category. There are more than 100 alternatives to EndeavourOS for a variety of platforms, including Linux, Self-Hosted solutions, BSD, Windows and Mac. The best alternative is Ubuntu, which is both free and Open Source. Other great apps like EndeavourOS are Linux Mint (Free, Open Source), Debian (Free, Open Source), Manjaro Linux (Free, Open Source) and Arch Linux (Free, Open Source).
Bodhi Linux, a lightweight distribution featuring the fast & fully customizable Moksha Desktop (https://alternativeto.net/software/moksha/about/). The 64-bit is built on top of Ubuntu (20.04). The 32-bit Non-PAE architecture has a Ubuntu 18.04 base – Bodhi Linux 6.0.
The Temple Operating System (TempleOS) is a free and open source, x86_64, non-preemptive, multi-tasking PC operating system. FEATURES * x86_64, ring-0-only, single-address-map, multitasking kernel with multicore support.