And why so many time travel stories fall flat, they are predictable.
Agreed. The time travel stories I tend to like best involve Stable Time Loops and "You've already changed the past" tropes, wherein the story happens exactly as it already did, and the time travel just reveals "Oh, that's what that thing was." TribeTwelve, a found footage Slenderman series I watched religiously during the height of the Slenderman Boom (I wasn't the target age demographic, but I'm a sucker for stories about unknowable Edritch Abominations) is one of a handful of amateur attempts at portraying such a Stable Time Loop. The instances of time travel are used for exposition, not to undo a mistake or something.
Like... I saw Infinity War, and was pretty annoyed at the predictable time travel. They just used it to solve problems and really, REALLY should have screwed up the timeline a whole lot. None of it made sense, and they didn't even try to explain how Thanos from several years previous could come forward in time and be killed without absolutely destroying the entire timeline. By doing that, the Snap never should (or COULD) have happened. I guess they just created an alternate timeline instead where it both happened and didn't happen or something, because it's not even mentioned.
Stuff like that is why I've always disliked multiverse explanations for time travel hijinks.
The best time travel stories I've ever consumed are really, really, really strange for me. The first is Steins;Gate, which has clear rules and limitations placed on it (I strongly recommend watching that particular anime if you haven't already; it's strange and intimate and surprisingly (and pleasantly) complicated, with a particularly good dub if you aren't a fan of subtitles). Anime isn't my favorite medium, but I really do like stories exactly like that.
The other is the Legacy of Kain video game series. It deals with time travel throughout the series, paradoxes, using paradoxes to advantage, eldritch abominations, fate, and vampires. Plus all of the characters are Hams who speak in Shakespearean dialogue in a way I've never seen anyone pull off in a video game. Pity the series hasn't gotten a new entry in like twenty years, because I really, really wanted more.
Anyway, I hope whatever time traveling we see in Dresden isn't a mere plot device to fix a mistake or something, but is done in such a way that makes sense, without violating the previous rules we've seen so far. For exposition, mostly.