This is why competition matters. Notice the US isn’t included in that list. Sony mostly picked places where they dominant and the Xbox isn’t a threat but they know if they raise prices in the US then Microsoft will use it as an opportunity to eat into their market share.
I think its more that USD is still considered the world currency and currency exchange rates add up over time.
The Playstation brand isn’t dominant over Xbox Series in a region like Canada for example.
Also, something similar happened to Canada with the PS4. It launched at price parity with the US version due to a strong dollar but then around a year or so after launch the price went up because the Canadian dollar fell.