Get adblock and sponsorblock, or just yt-dlp it and let it cut out all the cruft, watching youtube with the callouts and sponsor segements left in sucks but we have the technology to solve the problem. I would believe there's good long form fiction content, I've listened to fiction podcasts with sound effects so there's at least that. I mostly watch multiple hour long non-fiction content so there's definitely lots of long form available, but I'm not sure how much fiction there is.