Before: `PLASMA_USE_QT_SCALING=1` set, 1.2 scale factor: Plasma text looks awful:
{F5749797}
After: `PLASMA_USE_QT_SCALING=1` set, 1.2 scale factor: Plasma text looks amazing!
{F5749798}
Without both `PLASMA_USE_QT_SCALING=1` and a non-integer scale factor set, there is no visual change.