The answer
Yes. Even if on-chain outputs are difficult to link by address reuse, an invoice, email, account profile or merchant database can associate payment activity with a person.
What to do next
Protect checkout and customer metadata; avoid claiming address-level privacy solves identity privacy.
BTCPay Server — Bitcoin checkout software
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NordVPN network privacy service
Relevant to protecting the network connection, not to making blockchain transactions untraceable.
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