2021-11-20T15:51:00Z updated. This page is SPECULATION until after 2021-11-21T23:00:00Z when we get to activate the game and try this info ourselves.
Please read Farming Simulator 17 Guide and Farming Simulator 19 (FS19) Guide first as we do not repeat the same stuff in this tutorial unless it has been changed.
Build mode is feature under which placeables, landscaping and all related items are listed. For more details please read FS22 Playing Guide Build Mode.
Production chains are good old factories, where you produce your own goods. There is a long history in FS17 and FS19 for generating fertilizer, seeds, etc along with more complex goods which can then be further used in other factories.
For more details please read FS22 Playing Guide Production Chains.
Back in FS19 ThundR created a mod for rock picking, now this is an in-game Farming Simulator 22 (FS22) feature. Giants call this "stone picking" but all real life youtube farming videos use rock picking terminology.
For more details please read FS22 Playing Guide Rock Picking.
For beginning players its always difficult to get good progress into your farm, to develop it further, buy better vehicles and more farmland, knowing the best crop selling prices is essential.
For more details please read FS22 Playing Guide Crops Best Selling Price.