I’ll try to make this quick. I started gaming on my 2019 Sony Android TV, and it frequently displayed a banner at the top with connection and resolution information. I hate when things constantly pop up, but it also blocked a pretty large portion of the screen. After some research, I found references about older versions of the operating system where Banners have their own menu item. Not on my TV, though, and I was starting to become very frustrated.
The option is there! It is in a location where I did not expect it. Open the settings and navigate to "Watching TV".
I associate that with a cable connection which is why I never looked there in the first place. I do not have cable. Next, disable "Info banner" and feel relieved.