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.
If Sync Pro ever works with Lemmy I’ll be soooooooo happy. Everyone is mourning Apollo and I’m over here feeling like I’m attending Sync’s funeral alone.
Hopefully he goes through with bringing it to Lemmy, he commented that he’s thinking about it and another user linked to a method to do fairly easily.