Case sensitive file's and folder's names clush in Windows and MacOSX NC-clients

Hello, guys!
Tell me please how to fix case sensitive clush situation with two files like “Test.txt” and “test.txt” in the same folder on the Windows and MacOSX clients ? (Linux NC-client are fine with that of course)
Is it possible to SWITCH OFF case sensitive feature for file’s and folder’s names in Nextcloud Server ? Is there a magic key doing that in it’s config.php or somewhere else ?
With best regards, Alex.