As quoted from the linked post.

It looks like you’re part of one of our experiments. The logged-in mobile web experience is currently unavailable for a portion of users. To access the site you can log on via desktop, the mobile apps, or wait for the experiment to conclude.

This is separate from the API issue. This will actually BLOCK you from even viewing reddit on your phone without using the official app.

Archive.org link in case the post is removed.

https://web.archive.org/web/20230611224026/https://old.reddit.com/r/help/comments/135tly1/helpdid_reddit_just_destroy_mobile_browser_access/jim40zg/

  • Yeah, the communities are not the platform. Reddit’s concluded that they’ve captured the communities on the platform and now continue to enshittify the experience for their gain at our expense. I hope as a community we can prove them wrong about that capture, and watch their userbase evaporate as we migrate somewhere else.