Finder is missing so many basic features that explorer.exe and Linux file managers have had standard for decades.

Simple things like easily copying paths (and no, not with a weird keyboard shortcut nobody uses - a simple GUI method, preferably with an address bar, which Finder also lacks), copy queuing (pause queued copies rather than shotgun them all at once), cutting files (FFS why is this feature outright missing? There is an awkward keyboard shortcut to move a copied file but it's frankly not the same), broken views (icon view sends most files offscreen, and even maximizing doesn't bring them back into the confines of the window), idiotic keyboard shortcuts (Cmd O opens a file, Enter renames it? No other OS does this). I could go on and on.

Finder is a rare case in macOS where Windows actually outclasses it in every way.

With respect, most of your complaints fall under the banner of "waaah, I'm used to the weird way Windows does things, so I don't like the weird way macOS does things."

A relatively universal aspect of macOS is that menu/context menu options can dynamically change as you hold down option. So for anyone vaguely familiar with the macOS operating system, it's easily found from a context-click or the edit menu while holding option.

If you're doing this more than once a week, it's command-option-C on Mac and control-shift-C on Windows. Learning this is as simple as any other keyboard shortcut.

Of course if you're just copying a path, chances are it's to paste into the terminal. There's an easier way. Just drag the file over the terminal.

The feature is not missing. It is just not enabled by default because Apple hides away complexity (just like modern browsers don't show the link target you are hovering over anymore). Enable the path bar. It does what you want in regards to path copying.