Mac or browser-based DAF app?

Mac or browser-based DAF app? Hi all, I just remembered about DAF apps as I have a big, all-day interview coming up. Does anyone know of a free or cheap solution that will work on Mac or in Chrome, in conjunction with Zoom? I've done a lot of research and can only find mobile and Windows apps. Alternatively, an iPhone app might do the trick, but I couldn't get any of them to work on phone calls. Have tried a couple audio apps like QuickTime/GarageBand/Audacity and can get mic playback but no delay.