The Brave and Opera browsers natively support only .crypto domains minted to the Ethereum network at the moment.
Websites on domains minted to Polygon will require our UD browser extension at the current time.
Please note that our extension is not able to mask the underlying URL with your domain name. Rest assured that this will not be the case once we acquire official browser support.
We recently rolled out the Layer 2 solution (Polygon) so that users can mint and manage domains gas-free. We are currently waiting for browsers to update their resolution libraries to support our domains on Polygon, as they did for Ethereum. There is no current timeline for this, however, we will be sure to update users on our Twitter as new information becomes available.