Gtk is hardware (GPU) accelerated, while Qt Widgets is software/CPU-rendered.
I notice you say, specifically, Qt Widgets.
Yes, classic Qt Widgets still doesn't allow for hardware acceleration.
However, the majority of Qt UIs you deal with are in Qt Quick, which is hardware accelerated. Almost all of KDE is Qt Quick, for example.
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I notice you say, specifically, Qt Widgets.
Yes, classic Qt Widgets still doesn't allow for hardware acceleration.
However, the majority of Qt UIs you deal with are in Qt Quick, which is hardware accelerated. Almost all of KDE is Qt Quick, for example.