This scripture does affect the Judges timeline as the Judges chronology is 100 years longer than the 480 years mentioned in this scripture. (140 years if you use the LXX)
Here I have ± 354 years for the Judges
The apostle Paul in Acts 13:18-21 uses the longer period in his sermon, as his figures add up to 530 years, and with King David and the first 4 years of Solomon, you get 574 years for the same period. My own calculation of the Exodus-> Temple was 584 years. My personal feeling about this is that 1 Kings 6:1 is most likely copied incorrectly and should have been 580 years.
Not sure how you have calculated this?
Acts 13:19-20 And after destroying seven nations in the land of Canaan, he gave them their land as an inheritance. All this took about 450 years. And after that he gave them judges until Samuel the prophet.
So I started the count with the Exodus (1496 BC) and the 450th year was (1046 BC), this was the 14th year of King David and Samuels ± 54 year agreeing with verse 20 in Acts.
This is where the translation makes a big difference. The King James Version reads this way:
(18-21) And about the time of forty years suffered he their manners in the wilderness. And when he had destroyed seven nations in the land of Chanaan, he divided their land to them by lot. And after that he gave unto them judges about the space of four hundred and fifty years, until Samuel the prophet. And afterward they desired a king: and God gave unto them Saul the son of Cis, a man of the tribe of Benjamin, by the space of forty years.
So this gives you: 40 years (in the wilderness) + 450 years (judges) + 40 years (Samuel & Saul) = 530 years. Add King David (40 years) and 4 years into Solomon's reign and you get 574 years.
The version you are reading from makes it appear that the 450 years occurs before the judges period even starts, which if counting from the Abrahamic covenant would actually be 470 years, not 450. (430 years for the covenant + Moses 40 years)
The American Standard Version muddies things up further:
(19-20) And when he had destroyed seven nations in the land of Canaan, he gave them their land for an inheritance, for about four hundred and fifty years: and after these things he gave them judges until Samuel the prophet.
Which makes it look like the 450 years is between the destruction of Canaan and the judges period, which you could contort to say that the inheritance was for 450 years, but extended into the judges and beyond or something to that effect.
I did some checking (since this came up on another thread somewhere before). Some of the versions that translate it like the 450 years precedes the judges:
CSB, Douay, ESV, NIV, RSV, NCB, NET, GNT, ISV, LEB, MEV, TLV
Some of the versions that translate the 450 years as if it was during the judges:
KJV and derivatives (AKJV, NKJV & KJ21), DARBY, GNV, RGT, TLB, YLT
And the confusing ones that don't know what they want to say here:
ASV, NTE, Wycliffe
So I happen to be siding with the second group, since I think it's much more likely for a single word in 1 Kings 6 to have an error than the entire timeline of the judges, which comes out to 500 years between the exodus and Samuel if you add up the reigns and the oppression. (Which also, if you subtract Moses 40 years and assume 10 years to conquer Canaan comes out to exactly 450 years.)
Flavius Josephus comes out to 592 years for this period, and as I mentioned Eusebius also confers with this timeline.