As far as know, with any Microsoft 365 plan that has teams can use this APIs as they are part of Graph which is a gateway to data that you have in M365. E5 and E3 plans still both support teams in a different way. One thing to note is that these APIs are classified as teams protected APIs and are not supported for personal or work accounts but only on application level.
You can not access them using MS Graph Explorer because of the permission requirements. If you need access to them, you can start with a request from teams protected APIs docs.