Have you tried macos? Seriously though, in Debian you just type ‘sudo apt install program,’ that is about as simple as it gets. Also opensuse allows you to not install yast with like 2 clicks in the installer, and all the GUI tools are just wrappers for terminal tools that they also include. I am not saying this to be insulting, but I honestly don’t think you know enough about Linux to know what you are looking for. If you do want to try Linux, just try a beginner distro like mint.
Edit: upon reading some comments, I see that you mean apt is complicated under the hood, not difficult to use. You could try gentoo if you don’t mind long installs. It compiles from source so that is about as simple as package management gets.