Well there’s ways you can cheat it. Like how video games can provide the illusion of choice when the story continues on regardless.
You could use the same footage for each branch but have different dialogue.
You can use the same footage for each part but with a slightly different section at the start.
Rather than having a branching storyline you can reuse footage and have one that loops back into itself. Or you could cheat completely and make the choices completely fake.
Oh yes, it’s a thing. I’ve seen it done as advertisements.That’s quite a lot of them out there. Off the top of my head Twix has one, however I’m not linking it since it’s about winning a girl as a prize and is rather annoying. Strange that I find it far more objectionable when there’s an actual actress playing a part then when just playing a dating sim.
The one that stuck most with me is http://www.survivetheoutbreak.com/ It’s a horror zombie video. I hated them all, wanted them all to die. Fortunately I think you can lead to their deaths.
Chad Matt and Rob have a few interactive adventures on youtube. While I’m sure I watched them I can’t remember https://www.youtube.com/watch?v=W3lsu-r_xBw
Oh there’s also https://www.youtube.com/watch?v=lBOaBhVduu0 but I couldn’t get past the first 10 seconds I found it so annoying. If I muted it it might be easier. I think I’d rather have the zombie one.
Actually what I prefer is just plain text since it’s far less annoying.