Unfortunately, because this is an OS level issue, there isn’t too much that we can do. I have created a sort of a workaround for this though: Added code to track buttons pressed while meta key is active on MacOS by PolygonalSun · Pull Request #12693 · BabylonJS/Babylon.js (github.com)
In this PR, we will track what keys are pressed when the Meta (Command) key is active and manually release them when the Meta key is released.