Aqara A100 via Matter with M3 hub

Does not work as far as I know unless Aqara have added the feature very recently.

I couldn’t get anything about the lock over matter.

Update, hooray, perhaps they have just added it:
https://www.reddit.com/r/homeassistant/comments/1l5fpz8/aqara_a100_support_added_for_home_assistant/