There are three ways to play multiplayer in "Minecraft: Java Edition:" through an online server, a LAN server, or a "Minecraft Realms" server.

Minecraft Realms is a multiplayer service that allows you to play with up to 10 friends on an invite-only world. To join a Realm, follow these steps: Launch Minecraft. Press "Play." Press "Realms." ...

Players can simply add friends inside Bedrock Edition (Image via Minecraft 1.19 update) When it comes to Bedrock Edition, players can easily send and accept friend requests right from the game.

Minecraft Realms are servers run by Microsoft where players can invite their friends for private games.