Product Manager can refer to an individual contributor IC or someone who also manages other Product Managers (and sometimes even adjacent functions) e.g. a Group Product Manager. The titles are not very standard though. Many of these roles are hybrid as well. For example, a Product manager who will be responsible for a Product portfolio and some products in that portfolio as an IC, while managing/supporting the work of PMs working on other products in that portfolio.

Same for TPMs. They can be ICs or managing other TPMs.