This is likely done by streamers and I think most streamers do it because what you said is true, this can make them profit from the many people who are interested in gambling by registering through the link provided by the streamer, their main goal is to promote their casino by showing big wins that attract viewers, because currently gambling which is indeed popular makes many people think they can get profits quickly, so not a few people are looking for casinos that easily provide wins.
Saying that the video shown by the streamer is fake is indeed a reasonable point of view because usually the streamers can always get wins that are so big, but no one knows if it is fake or not, but what is clear is that they are also looking for profit in their own way.
Here in our country, the ones you see doing livestreaming are the influencers who always get huge views on youtube and facebook but when their views started dropping,
they shifted to streaming live while they promote casino gambling.
There are a lot of people like that in our country now, honestly speaking, and if I look at their views, they are not the same as they used to be when they weren't promoting gambling.
The situation for now is that the most important thing is that they get profit regardless of what they present in the gambling that is done because after all, with difficult economic conditions and a lot of gambling connoisseurs who sometimes like this kind of spectacle, they (the streamers) will do whatever is most important for them to have profit in many ways, referrals are one of the things that make it possible to happen not to mention the total impressions obtained and not infrequently from their viewers giving gifts that can indeed be collected this becomes an interesting money thing and benefits several times for them.
So for now not a few influencers do live broadcasts for gambling because there are still quite a lot of enthusiasts. Regardless of those who do real gambling or do it just a job demand, in the end nothing has changed from that.