Cannot join server on Nintendo switch due to login error

For the Minecraft Bedrock version provided by Nintendo.

After login on Nintendo Switch account and on Microsoft account, the server tab says "You cannot join cross-platform games without both a Microsoft and Nintendo switch account".

Warning, the main screen before says that I am connected to my Microsoft account, with the ID name. So it is not another duplicate of MCPE-95651

I did not subscribe to "Nintendo Switch Online", if it is that, the sentence should be change to include this name.

Here a workaround that did not work for me : https://answers.microsoft.com/en-us/xbox/forum/all/my-nintendo-switch-on-minecraft-says-you-cannot/4a362f88-2969-4c36-b9e5-31762afa2630 and https://www.reddit.com/r/Minecraft/comments/u1rew7/nintendo_switch_minecraft_server_not_showing/