Linux

My current issue is i see you guys constantly having issues, editing files etc.

These guy cannot self-develop

They never learn thing themselves. Never read books. Never read manual pages.

Just ignore them.

Is it not stable?

Commits to softwares around Linux (userland, system maintenance tools, etc) usually just works (even if alpha). There are few bugs.

Alpine Linux edge+testing is much stable (my only issue come from testing mesa packages, just don't upgrade this package to any version without -r0 or -r1 or like that :) )

Can you not set it up and then not have ongoing issues?

Yes.

A system that never have to su root (except for shutdown, reboot).

I use Ubuntu for everything I do (except building and testing windows binaries) beside upgrading when it asks me to I never really have to worry about anything, everything I use just works and the ui is fine.

I'm not a big gamer and I only really use open source software so I don't know if you'll want to do things I don't but I do pretty much everything else: image editing, video editing, CAD, coding, all sorts of weird internet stuff.

It's better than it was, but still not as user-friendly as Windows or macOS.

Linux has distributions. Think of it as windows preconfigured for different target groups or by different groups. They all have different goals and ideals. There are stable distributions like Debian and distros built on top of that or unstable ones like Arch and Gentoo + all the distros built on top of that.

Each have trade offs. Many stable distributions don't get all the newest software or features because in order to be stable, everything has to be tested. (No software is bug free anybody who tells you otherwise doesn't know what they're talking about). Some stable distributions do have new software and features but are very difficult to configure or set up.
There are unstable distributions that get "bleeding edge" software and features, meaning as soon as they are released they are available very quickly thereafter. Things are bound to go wrong more often here and the system can break in unexpected ways that require more knowledge to fix.

If you want a stable system, don't use an unstable distro unless you know what you're doing.

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Is it not stable?

Can you not set it up and then not have ongoing issues?

You are going to get gaslit to hell about this on lemmy. But no. It is not stable in the sense you mean.

The effort is worth it though.