That's a ridiculous statement. Updating one's device is good practice and keeps important things in check, such as updates to Safari keeping you safe when browsing, or bug fixes, keeping you updated from issues which needs to be addressed, but sure Apple if "forcing you." And yes, bringing you new features as they become available. But you are NOT being forced to do anything.
And for the Covid tracking, you OPT in if your state or location even uses the API Apple and Google jointly created to permit 100% anonymous tracking to see if you've by chance come in contact with someone who has tested positive. They too would have to have opted in. All 13.7 did was make it easier to opt in, but you are not being forced to opt in.
I am incredibly disappointed my state (Florida) has not utilized the API. I should have the right use possibly life saving technology to know if I've been exposed to Covid and I would opt in immediately if it were available to me.
Ps: Apple doesn't need your permission to do anything with iOS. You don't own iOS. You have a license to use THEIR operating system.