I use Mac Catalyst to convert iOS apps directly to Mac apps, so Mac(only tested on M series) is currently supported. But the UI should not look good (sorry I haven't had time to optimize it), and it only supports searching for photos in the "Photos" app.
It does actually work on Intel macs - albeit very slowly. I left the process on in the background and my computer kept locking up. Once I realised what was causing the lock ups - I checked the process and it had indexed a very small number of the photos.