In short, Dell is screwing around Windows Modern Standby (CS3) and with Windows 10 20H2 some power options are removed.
So what we would do before with power plans, now are restricted and the CsEnabled registry hack isn’t available anymore. Now, it’s a new reg key…
So here it is:
reg add HKLM\System\CurrentControlSet\Control\Power /v PlatformAoAcOverride /t REG_DWORD /d 0
That brings the old power options to Windows. Let’s hope that the next update doesn’t screw this further.