macOS is stupid?
Windows does that too!
I would dare to say Amiga OS is stupid. Those files in your NAS told macOS all interesting things about your files, the comments, the tags, creation date, access dates etc.
AmigaOS is stupid, you copy something to a different file system and protection bits and comments are gone.
I did that once, I copied some files to an usb stick went to windows and it was full of stupid .info files, but all the comments were gone and all the protection bits too, even when I went back to Amiga. That's very smart of AmigaOS! NOT!
Btw you can tell macOS to refrain from writing those files to a NAS or any other external drive, all together or selectively. Wow, how stupid!
And if it is a good NAS, with more than only windows support but macOS support to, you should even be able to tell it to hide those pesky files you wrote about.