Historically, reverse proxies were invented to manage a large number of slow connections to application servers which were relatively resource intensive. If your application requires N bytes of memory per transaction then the time between the request coming in and the response going out could pin those bytes in memory, as the web server can’t move ahead to the next request until the client confirms it got the whole page.
A reverse proxy can spool in requests from slow clients, when they are complete, then hand them off to the app servers on the backend, the response is generated and sent to the reverse proxy, which can slowly spool the response data out while the app server moves onto the next request.
WUT? Apple is very focused on privacy and the idea that a user can’t mute or install Adblock is… weird. Safari has good ad-blocking options as well as built-in anti-tracking features to protect users, applications can’t usually prevent the system from muting content and Apple doesn’t really sell ads outside of the App Store.
If you want to worry about that stuff I’d suggest focusing on the Meta VR goggles or god forbid Google starts making goggles, both of those companies survive on ad revenue and have an incentive to enshitify their experience in ways that the Apple we know today would never do. Of course companies can change over time, but the ethic at Apple is to only make products they feel comfortable with their families using.