Both teddit and libreddit have been down more than up the last couple of days for me. However, I discovered an android app that is still working. Geddit. I don't claim to understand why the former two don't but the latter still does.
Reddit front-ends access Reddit data in a way that is now bound by much stricter rate-limiting than ever before.
Popular instances may be usable for a short time until their limit is reached, then they will 429 like everyone else.
If you, personally, host a Reddit front-end instance, you are still affected, you are just less likely to reach the limit as quickly as public instances.