There’s something we’ve been missing from Hangouts. The option to minimise it within Gmail, to make it easier to manage your labels. We are hoping this functionality will appear soon, but here are some customization options to help you out…
Remove the Chat option from Gmail and use the web or desktop apps
Move Chat to the right side of Gmail (you’ll see in the GIF below that this can squish everything together, but you can reduce the labels list using the hamburger menu at the top)
You can customise the Chat & Meet options for Gmail in the settings.