At least it's not "Submit", which is just oppressive and demeaning. "Approve" would be more active and positive.

In all fairness, the "Submit" button in standard HTML is using the second definition of "Submit", not the first:

https://www.merriam-webster.com/dictionary/submit

1 a : to yield to governance or authority

b : to subject to a condition, treatment, or operation * the metal was submitted to analysis

2 : to present or propose to another for review, consideration, or decision; also : to deliver formally * submitted my resignation

3 : to put forward as an opinion or contention * we submit that the charge is not proved

It (the "Submit" button) is "present[ing]" (or "deliver[ing]") the form data field contents to the server. And in fact, myself, until I read your comment, never even considered the word in the context of the "yield" definition due to how it operates.