YoE roughly translates, not always. You could be doing the same work (taking on the same responsibilities) for years – this will not help you level up.

PM II equates to intermediate role for PMs – you're not an absolute beginner, but you struggle a bit with senior-level tasks. For large companies you can find all ladders at sites like levels.fyi.

Refer to a competency matrix to see where you fit in. E.g. https://about.gitlab.com/handbook/product/product-manager-role/product-CDF-competencies/

Thanks for the response. 
 I will checkout levels.fyi.

Product Manager

Software Engineer

Can someone help with what are the seniority levels of PMs at these companies?

For example - PM II at Uber is I think L4.
Just trying to understand if L4 is

Can someone help with what are the seniority levels of PMs at these companies?

For example - PM II at Uber is I think L4.
Just trying to understand if L4 is the right level at a certain years of experience.

PM Seniority levels in Uber, Amazon, Google, etc.