The command to prevent the automatic generation of .DS_Store on macOS is as follows. Please execute it in the terminal.

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defaults write com.apple.desktopservices DSDontWriteNetworkStores true

After executing the command, restart Finder.

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killall Finder

To restore the setting, please run the following command.

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defaults delete com.apple.desktopservices DSDontWriteNetworkStores false

As with the above, restart Finder after changing the setting.

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killall Finder