Yes, but apparently the NSFW side of the API will shutdown later on the 5th

The current workaround is to become a moderator. Just create your own subreddit and that should potentially give you access to nsfw. Maybe also set the sub to nsfw for good measure.

It's the Change Oauth Client ID patch, but there's some other stuff you have to setup for it to actually work. Here's the guide that I used.

You need a text file with the new oauth key to be present. Here's a guide

Here's the guide that I used. I'm also using a modded version of Sync Pro from mobilism, worked just fine in the Revanced patcher and let's you use Pro without crashing.