I have just installed postman on Linux by following the guide here. And I was able to open the postman desktop app. However, when I wanted to sign in by clicking the "Sign in" button on the upper right, the page below showed up and never directed me to any page to sign in (clicking "open it manually" didn't work either). The page just hung there until "Your request timed out" showed up.
I tried to open the app from terminal instead and I saw the following error:
I am not sure what's going on here but any insights would be much appreciated!