If the intention is to start from fresh grad position and if you don't mind the pay cut, there is definitely a chance to start from operational buyer role and move to supply chain role after 1 to 2 years if you have shown that you have the potential for it.

The role of procurement usually comprises supplier & technology sourcing/ management to support business needs. Being the single contact point to the suppliers for every and any aspects of things related to them. You will usually be assigned a specific portfolio/commodity to manage. Rfq and cost reduction activities are part of the job.

Supply chain roles will mean managing end to end material supply strategy. I'm not been in this role but I know companies usually make them responsible for material or goods readiness for factory or customers.