How many Windows users have UTF-8 set as the code page? : <p>In my understanding, the use of Windows filesystem functions accepting bytes (those with an <code>A</code> suffix) is discouraged (I didn’t find an official deprecation notice, but for example <a href="https://bugs.python.org/issue13374" rel="nofollow noreferrer">Python</a> deprecated their use).</p>

<p>On Unix-derived systems, file names are stored as bytes.  The encoding isn’t defined, but many systems are configured to interpret file names as UTF-8.</p>

<p>Since recently, it seems to be possible on Windows to set the code page to UTF-8.  Is it possible to estimate how many Windows users have that code page set?  Does it make sense to use the bytes-accepting filesystem API on Windows similar to how the POSIX API is used on Unix-derived systems (e.g. when porting some application from Linux to Windows)?</p>
