I was in some sort of little argument with a friend about what really change with the way people now fancy online gambling and how it just became very popular more than it used to be; and he was pointing his facts on sport betting and every other things around it;
I have tried to search online and I’m not seeing any convincing factor, I’m not talking about the pandemic contributing to the rise, the increased in internet access to some people, I’m talking about what game actually keeps all this momentum going, slot games or just the regular sport betting, poker etc, I really think the fancy and availability of various casinos games which some see as new means to make money have helped in this increase.
OP, I think you have already pointed out the main reasons, I don't think when it comes to gambling online, any game is as attractive as sports betting, slot and other types of games depend mostly on luck cause the algorithms just randomly bring numbers, but if you're a skilled poker player, playing in casinos and game houses is way better cause it will give you more chances of winning.
But in sports betting, whether it's offline or online, the results are the same, your chances are the same, in fact, online betting gives more advantage because you can have ease of access, it is flexible, and it has more tools for better analysis, so the games more attractive are sports and other betting that can't be done offline like aviator and some other games also makes them attractive too, but it is mostly sports betting because of its popularity.