that is correct, you can use Geyser to allow bedrock to join java players. For console or any bedrock client that lacks the direct connection with servers you need to also do some DNS shenanigans on the client where you use a jumper server to jump to the server you actually wanna join though.

I also recommend something like floodgate for authentication so you don’t need to have the server in offline mode or have the player need both a java and a bedrock account