I actually have mentioned all that, but let me summarize it for you:

Both are Arch-based, but have an easy to use graphical installer.

Manjaro holds back packages for 2 weeks from the Arch repos. That causes stability and security issues. The maintainers have also demonstrated a clear pattern of negligence that impacts the whole Arch ecosystem.

EndeavourOS does not hold back packages. They also haven't broken the AUR twice.

That's it. Should be pretty clear why EndeavourOS is the better recommendation.