audioMutedWhenJoined does not have effect

Dear All,
In the config.js, I set audioMutedWhenJoined to true, but it seems that when there are more participants (more than 10 perhaps) there are some participants join without muted microphone. Do I miss some other settings to mute participant when he joins a room?
I already set startAudioMuted to 0 (all users are muted arent’ they?).
In my old config, I found an option “startWithAudioMuted” I wonder whether it is a mistyped option or a real one? If it is a real option, then what are the meeting of these three options, all related to the audio state while joining a room.
Thank you in advance for you detailed explanation
Best regards

There is on such option, where did you get it from?

This is as described in the config file: jitsi-meet/config.js at ea56010e09efb20839fff026e9f357864f206c7c · jitsi/jitsi-meet · GitHub

And same for the other one: jitsi-meet/config.js at ea56010e09efb20839fff026e9f357864f206c7c · jitsi/jitsi-meet · GitHub