EndeavourOS is as simply installed as Ubuntu, even better, considering last time i tried, ubuntu installer gave me some weird errors few times. I think EndeavourOS is actually the best for noobs because of AUR and yay. AUR is supperior to all that PPA stuff. Not to mention the great ArchWiki. All Ubuntu has is forums, not so comprehensive. Mint has even less comprehensive answers on its forum, and they're a lot often outdated. And not all answers from the ubuntu ones are relevant for mint. Opposing to them, what's relevant for Arch is relevant for endeavourOS. Also, it comes in nice flavours, offered during the install process. Not to mention the "welcome" utility helping you make some initial tweaks.