As for Windows:
TBH, I think people starting new wxWidgets project in year 2025 or later, who target OSes from the previous millennium, must deal with it. Whether you like it or not, starting a new project using a severally outdated wxWidgets version is a very bad idea.
Of course, one is still allowed to use whichever wxWidgets in a C::B project, one cannot just use a wizard to create one. I honestly don't think it is unreasonable and I am not exactly a youngster who likes to throw away everything slightly old.
And as for Linux, by the time new C::B version is out in the wild, it will be about 3 years since wxWidgets 3.2 release. If 3.2 is still not supported, then there must be something wrong. Anyway, the "why start a project using outdated and unsupported library version" argument still stands. Moreover, AFAIK, the trend has been to move away from linking the system libraries and pack their own with a project instead.
Either way, I am not going to argue (any further), I let the devs decide if they are interested and what they want to take.