All the 3rd party client apps are dead, but the RES extension still works for now.
In terms of outcomes, Reddit appears to have made their mobile website less user-hostile. Dismissing the "download app" modal still has to be done, but after that the experience is OK. Funnily enough, there are not that many ads on the official site, because Reddit seemingly doesn't have many advertisers to begin with.
Not completely dead, but yeah, for the vast majority of users who are not very technical, they are dead (and unsupported). I, personally, still use Reddit is Fun daily, so the API price hike didn't change anything for me, so far. It just required a patch with ReVanced Manager and providing your own API key via a text file.
I used to use Reddit Sync. I uninstalled it when the API change happened. I don't miss it. But a while later I wondered if anything was still discussed on the subreddit and it seemed that people had found a workaround and were continuing to use the app. Not sure if it's still possible or possible with other apps.
In terms of outcomes, Reddit appears to have made their mobile website less user-hostile. Dismissing the "download app" modal still has to be done, but after that the experience is OK. Funnily enough, there are not that many ads on the official site, because Reddit seemingly doesn't have many advertisers to begin with.