Pretty much. There is a sort of isolated casting tab/menu that comes up that will allow you to pick the device to cast to, which may be the only one available. The first time I tried it after everything was there it took a few moments longer than I expected for it to find my Chromecast device. Were you to cast, the actual cast control button then appears in the controls on the browser itself, to the right of the address box.
Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042
Journalism 101: If someone says it’s raining and another person says it’s dry, it’s not your job to quote them both. It’s your job to look out the f**king window and find out which is true.
~ Jonathan Foster (attributed)