Pretty sure that most casinos do really share up on the same requirement, there might be some differences on which there are platforms who do only ask out 2x of your deposit before you could withdraw and something that do talks about bonuses then this is usually plays around 30x-50x wager requirement which is something that very common and they do differ but not really that much in concern because no matter
which angle you would be looking and going, you are really still at disadvantage.I do agree into a point on which anyone should really be having at least the time on checking out
their terms and conditions so that you wont really get shocked for whatever things that you would be encountering.
Many a casino even allow you to withdraw fund lower than 2X. I have seen multiple sites who allows withdrawal after 1.4x wagering. So, 30x-50x really should be considered as a scam attempt or something wrong which is too much difficult to acquire.
1.4x wagering for bonuses or your deposits? I don't think that a casino would ever allow someone to withdraw the bonus by only wagering about 1.4x or 2x but that could be only about the deposited money and it is normal since a normal casino would only require you to wager your deposited amount at least 1x before you can withdraw it back.
The 30x or 50x requirement is probably for the bonuses whichever casino has that requirement, it can't be for a normal deposit because even 3 to 5x is a lot when it comes to withdrawing the money you've deposited.