Thank you for reaching out to the Zoom Developer Forum and welcome to our community, I am happy to help here!
As you are aware the JWT method will be deprecated in June 2023 and we are suggesting our Developers start migrating the JWT applications to the Server-to-Server OAuth app.
The only thing that will change will be the way you generate the tokens to make those API calls, but the way you are calling our endpoint will remain the same.
Here is the link to our docs:
Also a link to a post that I wrote comparing both JWT and Server to Server:
Lastly, another post about how to use Server to Server OAuth app with Postman, so you can start testing locally: