Yes, but I don't think having LLMs only write functions, and doing the architecture yourself qualifies as "vibe coding": rather "AI-assisted engineering" (which is what I do).

Vibe coding, to me, means having an LLM, with or without agents, do everything after an initial vague prompt. Which is why "anyone" can vibe code (because anyone can write general hand-waving imprecise instructions). This inevitably results in pointless demos and/or unmaintainable monsters.