I don't think Neon is as oppressive, but there's a layer of bullshit to her playstyle that make her incredibly unfun to play against. That layer is the sliding accuracy.
Having high accuracy while you're 1. in motion (sliding), 2. going very fast (sliding speed), and 3. having a harder to hit hitbox (slide makes the character model smaller to hit) is just really stupid. Imagine if raze had full accuracy while blast-packing, or Jett being able to shoot her gun mid-dash (which if we think about it, Neon slide is the same except slower and less forgiving).
Chamber's pre-nerf kit was probably the most oppressive kit in the game's history (at least IMO), so current Neon doesn't come close. Neon just tilts me more because of that layer of bullshit where I get headtapped from a Neon in mid-slide. It feels like it should be RNG but no, it's the intended part of the kit. It's just not fun and I hope she gets that part of her kit (and only that part of her kit) nerfed soon.