From a tool that spends so much time polishing every UI detail, this window is very unexpected.
What is really a choice here? I cannot not update. I can either do it now, in which case, why not do it automatically? Or I can choose “next launch,” but how am I supposed to know whether I will want to update at some indefinite point in the future?
Startup is also the worst time to show a window like this. If I open Figma, that means I want to do something, and this is guaranteed to get in my way.
If a window like this absolutely has to be shown, show it at shutdown. But the rest of the apps have figured out background updates, so why can’t Figma?