You are applying arbitrary criteria to the subject to make it a fact.This shows a misunderstanding of the word “theory”
In the sense that you are using it, compared to scientists, keep in mind that NOTHING is EVER a proven fact. That’s not how knowledge works.
EVERYTHING is a belief. We build arguments for the belief, and at some point we consider the belief, as stated, with its constraints, to be true - a fact.
Within this context, yes, evolution is a proven fact.
It is still not fact. It is popular opinion.
Now if you wish, you can remove the arbitrariness and explain exactly how well known and accepted something must be to be considered a proven fact.
And you should also try to account for the many misunderstandings throughout history that were well known and believed.