Please try latest version of Netflix.https://www.apkmirror.com/apk/netflix-inc/
None of the versions will stream in HD or more (960x720 is the highest Q10 Pro can get without Widevine Level 1 and with Widevice Level 3). You could try to uninstall any preinstalled version and install the one from Play Store. Any apk from ApkMirror will be identical with the one from Play Store.
Is there any chance that this chipset will ever get support for Widevine Level 1?