This just started today. Version 45.0.6. Android 15.
I have a widget for a specific location. When I click it, Windy opens with the Android navigation buttons covering the red menu.
Can be easily fixed by either flipping to landscape and then back to portrait, or by clicking on the site again on the map.
I think maybe an Android update made it so that the Android navigation buttons don't get hidden like the used to. I also tried restarting my phone, but it didn't change anything.