@MyNameHasBeenTaken, just be empathetic and try not to sweat the small stuff, as far as the teachers are concerned.
Your child's school experience isn't going to be perfect right now. But if you (you as in any parent) see any worries or issues you might have with your child's experience through the lens of that article and what the heads and teachers are going through, it would help. With everything on their plate, is it really fair to burden them with a small thing that they probably can't do anything about at the moment? Certainly don't go in all guns blazing!
If you can help your child manage what's happening, help them understand why what they might want can't be done just yet, and keep them comforted and positive, that's probably the best you can do.
That, and be as positive, smiley and appreciative as you can be when you come across school staff. Seriously, a parent being understanding, kind and empathetic when you're stressed and you know things aren't going ideally, is SUCH a relief and a blessing. We love you for that.