Reading the rules of each casino where we gamble is a must, even if we only read some of the rules. Maybe we need to look for basic regulations such as withdrawals, deposits, KYC, and anything else we want so that we know the rules that are allowed and not allowed by the casino. This is to prevent us from making mistakes that could give us difficulties. As customers or gamblers at the casino, we must know the rules before registering or creating an account. If we don't match the rules, we can look for another casino that we want.
They say that a few is better than nothing at all. So yeah. And besides, the later parts of the TOS are I think not important anymore. I mean they are too complicated, that it looks like it wasn't really meant for us normal users. Am I right, guys? What we only need to know is like you said (the basics), because this is the main function of the casino. But even these, I admit that I disregard them before.
I'm still lucky though that I didn't get into any serious troubles. But right now, I'm more careful, especially that KYC is already a thing. It makes sense on why rules are placed below the login and sign-up button. This is for us to read and decide if we agree on it or not. This forum, specifically the gambling section is also a good help to know the casino's rules, because they can insert it there in their announcement threads.