
You’re assuming that the detector can be trusted. The detector could be someone who is being paid to mislead you on purpose.
If AI presence really matters to you, you need to trust your own two eyes for this sort of thing. Offloading that work to someone else is a considerable risk.
And to be honest, detecting AI is pretty fast once you’re able to spot it. I can spot the typical variants of AI art in just a few seconds.

You need to train your ability to spot AI.
AI art has a very distinctive style. Weird shadows, impossible architecture, and having a blatantly incorrect number of fingers are dead giveaways.
AI text tends to talk at you rather than with you. It has difficulty remembering context, so it tends to forget what you said 10 lines ago.

Visual novels fit this rather closely. They’re a mixture of book and game, so any fluff you encounter tends to be skippable.
Other than that, I propose The Pegasus Expedition. I found it to be fairly fast-paced.
You don’t have many opportunities to grind in Reverse Collapse. The game is hard, though it mainly depends on your ability to strategize than raw numbers. For example, there’s one boss early on who’s completely unbeatable unless you can exploit her AI into running on some plants.

This one: https://store.steampowered.com/app/3259820/Alices_World_Demo/
It’s a nifty little game where the protagonist and the player are treated as separate characters. Some girl found herself in an apocalyptic world, and the player appears as a disembodied voice to lend assistance. What I like about this one is that the protag has some Tales-esque skits to chat with the player directly.
Honestly, I view ROS as the “Fuck it” movie. All the direction of where the story should go was pretty much dead after TLJ.