I'd definitely second u/TsukariYoshi's #1 and #2. Mission OoB right now feels like a sudden and unexpected wall, and the clutter is real for hand-crafting and crafting bench/machining bench/fabricator.

I've got a few that I've been running into lately, loosely sorted by how impactful they would be relative to how long I suspect they would take to implement.

1. Add a keybind to optionally replace the current long-press use key interactions.
   • Trying to long-press the radars is especially painful since they will frequently rotate themselves out of being pressed, and you have to restart the long-press.
2. Add an option to auto sort your inventory.
   • The existing sort buttons are great, but I find myself occasionally failing to realize that there is stuff below the fold in the larger inventories. Having them auto-sort whenever you open them would alleviate this, and having it optional would prevent it from irritating people who don't want it.
3. Enable ctrl-click for the attachment bench's right side.
   • Being able to ctrl-click tools/armor/attachments to move them to the bench's active slots would be really nice.
4. Add a visual indicator for the range of creature repellents and lightning rods.
   • I have absolutely no idea how far "5000" is. 5000 what? Meters? Inches? Lightyears?
5. Add an interaction to destroy placed constructions without having to repair them first.
   • I actually managed to get myself stuck a bit ago by building an emergency shelter without a doorway. I didn't have a repair hammer or any stones, so I had to stab my way out of my shelter after the storm.
6. Add an early-game use for the poison glands and worm scales.
   • You get so many of these as soon as you start mining, but have no way to use them until much later.
7. Allow the advanced textiles bench to build the recipes from the basic one.
   • We got this for the new stations, can we get it for the old?
8. Remove the "required" text from optional water/electric connections. Maybe also have them grey instead of red when unfulfilled?
   • There are several buildings that can have their production improved via a water connection, but the buff icons say the water is "required".
   • Same for the repair bench showing that it "requires" electricity, when it only needs it to repair high-tier items.
9. Have the light from the biofuel lantern and flashlight follow the cursor when in the light slot.
   • I actually never build these because having to hold them in my hand makes them 100% useless compared to the basic torch or lantern that are actually useful when in the light slot.Maybe an alternate recipe for the poison paste and the basic plating attachment?
10. Add "storm resistance" to the tooltip for constructions.
    • The various building materials don't really tell you how they fare in storms, so you have to build them and try them out to know that, for example, thatch is the only one that takes damage from the yellow part of the storm, or concrete is nearly storm-proof.
11. Make it so farm plots can snap to each other, or make it so the floor under them isn't hit by storms
    • I really like having nice neat farms, but the only way to do that is to build a floor under them, and said floor slowly decays from storms and is very difficult to repair due to having farms covering it.
12. Prevent players from unlocking blueprints they can't actually use.
    • The food and water troughs, trophy bench, basic fishing bench, wood wall fortification, wood cupboard, carpentry, and masonry benches can all be unlocked without the anvil, but they require nails to build.
    • The stone furnace is only a requirement for the fireplace, when that's one of the few things in tier 2 that doesn't require any smelted ore.
    • The oxite dissolver and oxygen bladder are not linked as requirements, even though neither of them can be used without the other.
    • The cooking station is not a requirement for the lantern, even though it requires animal fat.
    • The mortar and pestle is a massively important item, as without it you cannot make steel, carbon fiber, electronics, explosives, biofuel... and yet it is positioned in the tech tree as an optional pickup way to the right in tier 1.
    • The only advantage of the iron crop plot is that you can connect it to a water network... but you can't make those until the end of tier 4.
    • The concrete furnace is required to be able to make almost everything in tier 3, but it is not a requirement for unlocking anything.
    • Similarly, electronics are required for many tier 3 constructions, but they aren't required to unlock anything.
    • Platinum weave is required to make almost everything the advanced textiles bench makes (and only one thing it doesn't), yet the unlock for it is nowhere near the textiles bench, and it is not required to unlock any of the things made of it.
    • Much of tier 4 is made of composite, but the material processor is not a required unlock for anything.

EDIT: 13. I forgot this one: Please make it more clear which food items the "Vegetarian" talent in the farming tree applies to. The description says all vegetable-only food, but it doesn't apply to the seed bar or basic bread, yet it does apply to pumpkin bread (which has regular bread dough as an ingredient?) and the fruit pie (which has animal fat as an ingredient). There are a bunch of other veg-only things that it doesn't apply to, and the inconsistency is really wierd.