Have you looked at the FTBFS symbols errors in your ppa armhf build? They look (unsurprisingly) similar to the qt6-webengine ones which have now been fixed.
https://launchpad.net/ubuntu/+source/qt6-webengine/+changelog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2058117 Title: qtwebengine-opensource-src FTBFS after Python 3.12 transition and six.moves change To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtwebengine-opensource-src/+bug/2058117/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs