Squatting 2x/week should be good for someone at your level, but cutting bench and deadlift down to 1x each from 3x is probably not a good idea. Reducing your volume by 2/3 is not a good plan for progress. I agree that deadlifting at the end of every workout isn't the best way to do things because you won't have much energy left, it's the last lift in a meet but you would have a break between each lift and you won't be doing multiple reps either. Here's a few ideas:
-Keep the 5x5 setup but deadlift first on one day, lower % for squat
-Change some of the lifts to variations (ex.: deficit deadlift, pause squat, pin squat, floor press, etc.)
-Do the extra work (rows, chins, abs, conditioning) on a separate GPP day or two
Rows, chin ups, and military press are all good exercises, but the carryover to the main lifts is limited. Rows and chins are mostly for shoulder health unless you lift equipped, I doubt you will have a hard time touching the bar to your chest without a bench shirt. Doing each of these once a week is plenty, and it shouldn't be prioritized over the main lifts if powerlifting is your goal. And since I see you are a bit confused as to what you should do next, you could try the Texas method or a 3 day Sheiko program for beginners. Those programs are basically guaranteed to get you results as long as you put in the effort and you will save yourself a lot of confusion.