I don't think that there is a "straight forward" command for this such as
What you can do it check your page DOM and observe which element(s) are loaded lastly and then wait for it.
I saw many posts asking for such thing, but all the workarounds wait for the last element in the page or even wait for a specific text.
Another solution might work, is to define the wait command in your config. Click here
wait (default: 0 seconds) - Whenever element is required and is not on page, wait for n seconds to find it before fail.
Hope this help you!