This is because the global models can’t accurately forecast the wind speed near the eye wall of a hurricane / typhoon where the wind is the strongest. For this reason the specialised centers RMSC don’t rely on these models for the wind speed even if they are quite good to predict the hurricane path. The NHC for instance uses special models, but in addition and above all the Dvorak technique based on satellite views and on airborne recon.
Even if ECMWF is not a RMSC, they provide a Tropical track forecast that you see in Windy. The model of the ECMWF, in reality named IFS or HRES, has been improved to predict better wind speeds in Tropical cyclones. See all details:
https://www.ecmwf.int/en/newsletter/164/meteorology/enhancing-tropical-cyclone-wind-forecasts
However the Tropical Cyclones track feature is based on additional parameters and calculation:
https://charts.ecmwf.int/products/cyclone?base_time=202308300000&product=tc_strike_probability&unique_id=13W_HAIKUI_2023