Like other PSTs, I was recently approached by few agilists to help them with PSPO-I certification. Here is one such conversation -

When we talk about Scrum for complex Product Development, it starts from Vision and Product Backlog.

The Professional Scrum Master (PSM) workshop has a module that talks about the Definition of "Done" (DoD) and Technical Debt.

Software and online-services companies are undergoing quick implementation of the Scrum framework in their Products. Scrum is a process framework that enables deliver complex products iteratively and incrementally while controlling the risk.