So after dedicating my precious time into a ultra survival world (Hard,No Map or start chest) coords allowed. I built a spawn base even at the start i had login issues where the code would always pop up i deleted mc off all my other devices and still suffered the screen.
I learnt that patience and moving left and right moved the loading better for it than just waiting for it to boot up. I created massive farms on my world near my spawn base and that still had missing chunks due to the lag. Which is ridiculous because its sold to be played and its already unplayable. shortly after my wife joined and That was only the start towards total lag and missing chunks to the map. Moving and playing is unbearable on mulitplayer.
Online so we switched to offline coop and it helped alot but as soon as the game saves boom be prepared to face if you dont know if u are alive or not because the mobs flash step or blow up as soon as its recovers discovery new parts was terrible.
My review for this is only for my deep hatred for the version on Nintendo switch. I lost many enchanted gear and items due to its instability even if you turn off all the bells and whistles it fks up. I highly suggest that if you are stuck in this situation move your world to realms and download it on a more stable device. Then you can unsubscribe if realms is not worth it.
I hope some of this brings a new light to people and that people wont waste money on a game thats on a unstable device. I found no fix to this issue on the switch so therefore its garbage on the switch.
To answer a few of the questions the farms are just the crops the animal farms are bare min due to entities bumping into each other will destroy the game lol. Yes off wifi but even 5g makes no difference for the switch and even local is garbage. Plus every update makes the games performance worst.