https://arstechnica.com/information-technology/2019/03/verizon-to-charge-10-extra-for-5g-but-wont-do-any-throttling-for-now/

Verizon will launch its 5G mobile service in April, but it will only be available in two cities at first, and customers will have to pay an extra $10 a month to access it.

One bit of good news is that Verizon won't apply throttling (or "de-prioritization") to the 5G service, but that may change later on, and slowdowns will continue to apply to Verizon's existing 4G service.