There's a closed pull request on the void-packages repository

[ci skip] Pyside stack: update to 5.15, rebuild FreeCAD
https://github.com/void-linux/void-packages/pull/23231

Description:
combined since FreeCAD:
* needs a rev bump because of Pyside update, 
* needs a patch for qt 5.15

build for  x86_64_musl and x86_64 are fine.  
pySide stack crossbuild is fine  for aarch64-musl
test runtime with x86_64_musl: no regression