There's a certain conceit, a plot mechanism to Russian Doll that I'll try to disguise here, but other reviewers aren't so coy about it. It's interesting in ep1 but quickly tires in ep2 and I was like "are you serious?!" into ep3 but it finally expanded the storyline a bit. In fact, Nadia, our protagonist, finds another in a similar predicament so they try to figure things out. The next few eps are mostly about meaningless encounters but some of it does tie to the end so don't dismiss it so quickly. Towards the end, things get really confusing since you're tossed into a blender of parallel lives and timelines like the Twilight Zone and the Outer Limits on steroids. And the very last scene of the final episode is like what?! I don't know about you but after I watch the conclusion of a series, I want to have a feeling of satisfaction and completion, not one of head-scratching and frustration.