ezcap128, ezcap1168 and ezcap1568 cannot work with new Mac OS X since Catalina 10.15 version. It is caused by apple doesnot support 32bit software.  anymore. 

ezcap159 and ezcap158 can support new Mac OS X. 

ezcap159 needs to install driver, and cannot work with QuickTime to capture video. It only can work with OBS or VLC mac version to capture video. 

ezcap158 doesnot install any driver, and can work with both QuickTime and other third party software to capture video.