First of all, the realm, cross-platform multiplayer, Nintendoswitch friends' multiplayer, marketplace, featured servers, etc. are currently unavailable, and if you leave the marketplace or featured servers alone for a certain amount of time, the connection will time out and “Restart Minecraft Please restart Minecraft.
However, restarting the Minecraft game over and over again has not improved the situation, and currently only solo play is available. I wanted to play multiplayer with me and other players, but due to this problem it did not happen...{}