This might be of interest: CPU frequency stuck at low values after suspend/resume on firmware 3.06 · Issue #91 · FrameworkComputer/SoftwareFirmwareIssueTracker · GitHub
The power mode is the EC mode, so windows should also set it. Look at advanced power settings? Or maybe ask someone on the A call on 240w adapter - #469 by Adrian_Joachim thread that’s running windows how they control it.