I always struggle with how much feedback/correction I should provide for my students. One of the things that I found works for me is having the students submit their essays in paper form, and then making corrections in the body of their text on the margins and between the lines as well as at the end of an essay. I think that for a student to receive a paper that is written all over would be a little discouraging and maybe even intimidating. In order to prevent discouraging my students I usually write something nice and general at the very end of their paper, right after the provided (hopefully) reference list. The first comment is always positive and does not exceed one or two sentences. Then I make sure to separate my critical comments into a new paragraph. Sometime it helps to write them up in the form of bullet points so that the students could easily see the things that need to be fixed, and could go point by point, crossing out the ones they have already corrected.
I believe that making corrections on paper prevents the students from automatically clicking “accept changes” in their Word document. Of course, the main struggle is always about how much grammar and awkward sentences correction I should do. I usually cave in and correct everything that could be salvaged in its present form. (However, sometimes student writing is so unintelligible that a sentence or a whole paragraph needs to be rephrased and rewritten altogether).
With every new draft I repeat the same process again. Perhaps there is a better way of doing it but I am yet to discover it. At least - I am trying to convince myself - they will have to actually read my comments and maybe, (just maybe) they will change something in their writing, instead of just mindlessly clicking away on the computer. I guess I do it this way because when I was a student trying to learn a foreign language, I was frustrated at my instructors who did not correct EVERY mistake that I made, be it grammar, style, syntax or pragmatics, but hid behind global feedback instead. Maybe at least some of my students today feel the same way.