QNX 7.1 has necessary support for building Qt6, it should be added to the CI.
qtbase doesn't compile for x86_64 with QNX toolchain
Configuring qt for QNX build fails
Bring QNX back into Qt 6 CI once its compiler/library copes with C++17
QNX ver. 7.1 Early Access
Qt61: NXP iMX8QM QNX 7.1 (gcc 8.3.0) Tech Preview
Remove Insignificant flags from QNX 7.1.0 targets