In the US its been crazy, before gambling was heavily frowned upon in the big four sports: Michael Jordan was heavily scrutinized for gambling, not on sports but just gambling for fun on his days off(when he was playing). The 49ers owner(Previous owner) Eddie DeBartolo Jr. was banned from the NFL as an owner due to trying to get a gambling license.

Now the NBA is heavily pushing gambling and the revenue that comes with it, In addition the NFL is also pushing fantasy football which is veiled gambling, a few years ago every commerical for an NFL game had 50% of its ads set to either draftkings or fanduel which are both gambling sites. So I see a huge predatory gambling cloud enveloping all sports which is a really sad turn of affairs.

There was a court decision recently (2 years ago?) that started to open up online gambling in the US.

I follow soccer, and right after that mlssoccer.com started publishing vegas betting odds for all the games, and ESPN FC started using UK betting odds for EPL and EUFA competitions.

They're definitely warming up Americans to the idea of normalizing betting and sports betting in the mainstream.

It was a change in sports betting. You really couldn't gamble on sports legally outside of the major casino sport books previously.

Keep in mind that black market sports betting is/was a multi billion dollar industry in the US so much of what you are seeing now is just more visible.