xfce4-power-manager 4.20 ignores settings (screen gets blank even if pm turned off in 4.18)

Since the update to Xfce4 4.20 the screen is turned off even if power management was and still is turned off (everything set to never).

Happens on my notebooks (x86_64) and on my Raspberry Pi 4 (aarch64) with Artix Linux resp. ARMtix with runit.

On my Raspberry Pi 4 on the System tab the "power saving mode" is empty, "after inactivity of" is set to 14 Min and all is grayed out. In Xfce 4.18 it was set to standby and never as it was and still is on my notebooks in Xfce 4.20.

Xfce 4.20 still suspends all my computers and the screens.

On my Raspberry Pi 4 I even get a notification about something with gdbus and sleep not supported by the kernel.

And if I'm logged in with two users in two X sessions and switch to the other user after waking the computer up I get a window about authorisation required for suspension asking for the password (can be ignored by clicking on the "Cancel" button).

I don't remember the messages literally since I switched back to my old installation with Xfce 4.18 because of those annoyances.