wxWidgets 3.2.5 has been released (https://www.wxwidgets.org/news/2024/05/wxwidgets-3.2.5-released/). I am currently compiling it.
Among many oher changes, wxFloatProperty now uses the correct decimal separator with non-english locales and wxVariant supports VT_UI8.
I haven't tried it.
But the msys2 package of the wx is already updated to 3.2.5 days ago.
I will try to update the nighlies to it; next to switching to gcc14.