I have to write this down, because apparently nobody understands this.
There is no such thing as a "misclick" in speed chess where you deserve a second chance.
If you're moving your pieces around quickly, conserve more of your clock than me, and eventually win on time, congratulations. That's a legitimate win. That's part of the game. Our match lasted long enough that I timed out; your edge was your speed.
But if you're moving your pieces around quickly and fuck up a move, too bad. You took a risk and got burned. Why would I ever grant you a takeback? Had you not fucked that move up, I'm sure you would have happily won on time.
I will never grant a takeback in blitz. Learn to balance speed with care.