It says you can only share your entire screen. That's fine from a laptop, but if you have a 4k/5k display sharing to people with laptops, wouldn't the text be u

It says you can only share your entire screen. That's fine from a laptop, but if you have a 4k/5k display sharing to people with laptops, wouldn't the text be unreadable? Sharing just a single window is the standard solution here.