I am currently doing a school project which requires to detect if a user is in the beacon range and the proximity(distance) of the user’s phone using pwa. I came across with web bluetooth, but it does not give much support for the estimote proximity beacons
Correct, the current state of Web Bluetooth doesn’t actually help beacons, because it’s for connection-based Bluetooth use cases (e.g., connect to a drone and control it via a web app). Whereas beacons are generally connection-less, that is, use Bluetooth advertising to make themselves known to apps nearby.
Work is already under way for a Web Bluetooth Scanning standard, which is for the advertising-based use cases:
https://webbluetoothcg.github.io/web-bluetooth/scanning.html
At this time however, no web browsers supports it yet:
https://github.com/WebBluetoothCG/web-bluetooth/blob/master/implementation-status.md#scanning-api