@ganymede Students will always complain about grades where they don't get A's. @Aria definitely has a reason to complain, but as someone that has been teaching for over a decade now (god I am fucking old) so long as you are clear in your responses as to why points are lost there's usually not room for argument.
I mean they still will argue. Last round of papers I got a four page email from someone about how they should have the two points I docked back (they didn't get them back). It's a fine line to walk with "I understand things are rough for everyone right now so here is some empathy and wiggle room" when there are students who will send you sob story after sob story and you will move deadlines and they still will not meet them and then not understand why they failed why are you so mean, but there's only so much you can do.
In a year or two you will get an email from someone saying you were the reason they became a better writer or better at what they do or are why they graduated or decided to go back to get a degree. And you'll feel like it's all worth it.
Until evaluations roll in. Because 9 out of 10 will be glowing but you will remember that 1 that rates you as the worst and blasts you.
It's still worth it. Probably.