No, it is the whole shebang which is why Reddit is forcing this extinction event for 3rd party apps.
I use the Now for Reddit Android app and Reddit Enhancement Suite extension on desktop. With this combination, Reddit has stayed visually identical for the past decade. I never saw things like NFT avatars, RPAN livestreaming or any of the things Reddit has added to make it something other than an old school messageboard.
Users like me are a disaster for Reddit because I treat it like a PHPbb forum from 2010. There is no hope of upselling me into something I would pay for. Reddit's owners however believe that they should be multiplying their wealth many times over for running a bigger Phpbb instance. That is the crux of the problem.