Can I ask who even clicks on these Google ads?

I click when I want to support the author. I don’t care what I click on, I just click on a few.

I agree. However, some dishonest services allow to download, but downloaded file is DRM. It is even worse.

• Setup new user to sudo

I hope it is not a passwordless sudo, it is basically the same as root.

If you are beginner in Linux, try beginner-friendly Arch-based distro: EndeavourOS, CachyOS, Manjaro

You can learn Arch without too much hassle while using one of them