This is an experiment for the instant app feature available on newer android versions.
https://support.google.com/googleplay/answer/7683278

You can open intents directly (if you have the 'instant app' feature enabled) just by going to a specific url.
https://trianguloy.github.io/intent/ + {intent uri}

Note that this is different than simply opening an url, here you can add extras, data, flags or even the specific package/component to launch.

Find more information and examples on the app page:
https://trianguloy.github.io/intent/

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As an extra, you can 'try' the app directly from Play Store on your device. The app simply contains a box to enter the uri manually.