How do you make linked duplicates with modifiers? How do I make a group of meshes which are a completely linked duplicate of each other? I’ve tried making a collection of the meshes I pant and made a linked duplicate of those, but when I change the modifiers in one the others stay the same, I can only change the mesh itself.
If anyone is familiar with Sketchup I’m basically looking for the equivalent of a component, where all changes made in the component are transfered to all other components.
For the moment you can give a modifier to a linked duplication but you won't be able to apply it (unless you make it a single object of course). So what you're looking for is probably Collecion Instance.
Create Your object (or your objects), put it in a new collection:

Press ShiftA &gt; Collection Instance and choose the collection. By default it will appear where the original object is relatively to the world center, so move the instances away:

If you give your original object a modifier, they will all be affected, you can also apply the modifier:

If you ever need to make one of the instance independent, select and press CtrlA &gt; Make Instances Real, then Object &gt; Relations &gt; Make Single User &gt; Object &amp; Data.