On this page of the Among Us guide, you will learn how to download the update to the game, which is in the beta and not yet available to everyone.
An update appeared to Among Us, which adds, among other things, a Task Bar that can be hidden and anonymous in-Game voting. However, these changes are not yet available in the official version of Among Us. So what do you need to do in order to play with the update?
First, go to the Steam Library and find Among Us. Then right click on Among Us and select Properties. In the next step, select the beta tab. Expand the menu, there should be an option to select public-beta. Select it and close the window, then wait for the update to install. Remember that beta is not the official version of the game, there may be various bugs, even if no one has reported any problems yet. You install the update on your own responsibility.