The only thing logged out accounts can view are individual tweets. I cannot view timelines or even navigate for the context of a tweet if its apart of a thread. It is 100% still walled off to logged out accounts and this is easy to verify.

Nitter does appear to work for now. The frustrating thing is I switched from Nitter links back to Twitter links because just after Elon took over, Nitter was only able to pull information randomly. The API would just fail. This works for now though so that is good news.

Reddit does work because subreddit feeds are technically not an API request, so even things like Reddit is fun still works logged out. But Reddit did disable the ability to view NSFW subreddits outside of their website and official app so a bunch of content is walled off even if you are able to use a third party client.