Can someone clarify "paid prioritization" and "fast lane"? If I buy the 50Mbps ISP plan and someone else buys the 10Mbps isn't that a faster lane / paid priori

Can someone clarify "paid prioritization" and "fast lane"? If I buy the 50Mbps ISP plan and someone else buys the 10Mbps isn't that a faster lane / paid prioritization? What about if a company decides to put their server in a datacenter instead of hosting out of their office? Aren't they paying for better access? What about CDNs? Aren't those "fast lanes"? It doesn't seem like this is the intent but based on how it is worded, it seems like it would apply.