Is there a reason why the feature flags are unusable/greyed out?
They are active on nearly all modern smartphones using android.
It only limits the potential of the Zenphone 6.
For me on firmware WW_17.1810.1911.110 the Feature flags section in Developer options is just empty when I don't count a single word Experimental.
We're on Android 10 and these flags were removed by Google in one of the betas. You must be thinking of less modern phones with Android 9 ?
Less modern and zero innovative phones running Pie. ??