Bypass the "open in app prompt" for nsfw posts
www.redditstatic.com/shreddit/*xpromo-nsfw-blocking-modal-*.js
A Ublock filter would look like this
www.redditstatic.com/shreddit*xpromo-nsfw-blocking-modal-*.js$script,domain=www.reddit.com
Step 1 is for removing this
\
www.reddit.com##div.prompt
The only reason you should not be using the filter is if it impacts other areas.
Use Tampermonkey to load the userscript, it is more precise than the Ublock filter.
Step 2 is for removing this