No it is not required.
Be aware that most tutorials and videos about AMP are going to be rather old in HA terms… and they may not reflect the most current practices, so it’s best to check the AMP Wiki. While it has not been abandoned, AMP is kind of in a “maintenance” mode.
Unless you need to trigger Alexa routines (and maybe a couple of other niche functions), you will likely be better served using the core integration Alexa Devices instead of Alexa Media Player.