@Suty Hi, thank you for your quick reply and for confirming it should work in Chrome. I found the trick is to go to windy.com and not include the parameters, then it works. Thanks for your help.

Is it possible to set GFS model as default in forecast? Now I have to change it from ECMWF to GFS every time when I close the browser. Where I live, the ECMWF forecast is always wrong.

I tried GFS as model shown at start up: in Settings > Start-up layer and location > Start-up layer -> Use last overlay. This works on the mobile app but not in a desktop browser.