gameplay on donut smp is really boring at 100M - 1B
Auction doesent generate significant profits anymore, as well as small farms like wheat or oozing farm, crafting or enchanting and than selling it in /ah...
If you want to progress further you really have 3 options and all of them are super boring imo...
Option 1) you built some ultra colossal gigantic farm. Big farms are really only possible to built with schematics so you need to install lithematica and search for schematic that is actually making profit (you MUST test it in single player first as there aremany farm schematics that dont generate profit or doesent work at all) This is really annoying imo... One mistake and after finishing whole farm you realise that some section should have been moved by one block up or down and you can quit server, because nobody is fixing that mess! After that you just afk and occasionally ressupply farm and sell product. I dont see fun in that...
Option 2 is trading. You order than you sell when price moves up... This can take days and for some items even weeks... Tracking price and liquidity in /orders isnt easy...
Option 3 are spawners. You buy bunch of them, than afk in night in bedrock hole and hope hackers dont find you, and in morning you sell. Idk how being in 1x2 bedrock hole can be fun for anyone😭
Spoiler alert! Gameplay gets even worse from 1b to 100b