The keybindings (and lack of documentation for them) in Finder sucks, having to google how to show hidden files in a save dialogue every time I have to do it sucks, having to search through the UI every time for the non-obvious way to get to a specific path sucks. Do I need to mention .DS_Store?

There are loads of different file managers for many different operating systems, they look and act the way they do from years of refining UX in response to the way users actually interact with them. This is why the file manager on my android phone is so similar to the one on my windows machine, and my linux install. All of them are different to Finder which appeared to lock some UX decisions in circa 1990 and then refuse to budge, this is why Finder sucks.

It's the one OS where file and folder manipulation via the terminal is actually sometimes faster for me, no need to go digging for the specific ritual Finder uses in opposition to every other file manager to do the task.