The ALT-Y combination doesn't work on the linux version. It is supposed to raise the hand but it does nothing. Reproducible: Always
which version of net-im/zoom did you test? Please provide emerge --info.
This doesn't seem to be a problem specific to Gentoo, see the following post: https://www.reddit.com/r/Zoom/comments/huvk0f/alty_raise_hand_broken_on_linux_client/ Please report upstream.