Thank you! That's good to keep in mind.
I don't know if you've ever gone through the process of legally changing your name, but it is inconvenient and time-consuming no matter when you do it. By your logic, it would be better for me to never change my name at all. That's a fair point, but I am still going through with this because it is important to me for personal reasons. The reason I'd risk the confusion and delays and spend the time calling offices is because I think names matter, and I'd like to be called mine. As someone who has a first name that strangers have tried to shorten and otherwise alter my whole life, I place a high value on being called my actual name.
I also know that changing your name after matriculation can bring its own challenges. My housemate in grad school was transgender and transitioned while a student. He legally changed his name with the government, but getting the school to recognize the change and update all documents after he had matriculated under another name was hugely complicated. I am committed to changing my name, and I'd rather do it sooner than later, but I want to do it in a way that will minimize issues. It seems that after the admissions cycle and before matriculating anywhere, if I am fortunate enough to get accepted, might be the best timing to minimize confusion.