Comment by detaro
4 months ago
But Qt doesn't care for microcontrollers, nor mainframes. The most exotic target they have is QNX, but "Qt needs C++XX" seems to be a pretty good motivator for QNX to update their compilers, which are gcc-based after all.
They care about all of these,
https://doc.qt.io/qt-6/supported-platforms.html
I do see exotic stuff like INTEGRITY as well, still the point stands all those platforms listed on the page have to support C++26 in the Compiler column as the reference compiler.