You're likely right. The official Perplexity docs actually confirm this is intentional by design — and here's the proof straight from their help center:
Perplexity's own domain permission system explicitly calls out perplexity.ai as an example of a domain that can be set to Read Only or No Access for Comet Assistant. The docs say admins can set access to perplexity.ai to Read Only, meaning "it won't be able to fill out forms on that domain," and No Access "completely disables Comet Assistant" for it. perplexity
For regular (non-Enterprise) users, Perplexity themselves appear to be applying that same restriction at the platform level — so Comet Assistant controlling pplx.com is effectively blocked or crippled by default. The session collision you're describing (Comet merging with the Perplexity chat window and breaking) is the symptom of that restriction being enforced, not a random bug.
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