Do Americans really just get random comprehensive check ups?

From the uk but have heard people talk about online that they get like annual check ups? Like not for a specific condition just for the fun?

Like here we have that if you have a condition that needs checked like I get asthma appointments. But that’s all they’re checking.

I don’t get it because obviously we don’t offer that here because our health service is free falling and even if it wasn’t that’s a huge waste of resources. But are a large number of Americans paying for this themselves… for fun? If you’re generally feeling okay why do that? Is that something you actually do?