Reading the rules in the casino is at least a must, but we can choose whatever we can read. Experienced gamblers only look for the most important parts like deposits, withdrawals, KYC, bonus issues, wagers, etc. Some parts vary from one casino to another, so we must ensure that we understand the rules and will not break them. For those with little knowledge, reading the rules is highly recommended because they need to know the rules so they don't break them. Indeed, reading the rules is boring because the rules are written very long, so many gamblers need to be more active in reading them, especially those who are inexperienced. But that's the way so that we clearly understand the rules and can avoid mistakes later.
Every time you enter any site, it's not just about gambling, as a smart user you must read the TOS and the regulations that apply to gambling sites, at least as you said, we only need to know the important points as you mentioned so that this becomes our guide when gambling. If a technical error occurs, it's usually boring to read everything because it's too long, but these points are important to know before gambling.
Before I register on a gambling site, I usually read the terms and conditions that I have just received, although sometimes gambling sites don't have the same thing regarding this, but at least we can differentiate them from other gambling sites that we register with. so that that way we can choose the right and best gambling site.