This is actually a good way to know if you are in profit of loss. There's a short football game I used to play on 1x bet and at the end of every month I would do a little check and balance to see if I made profit that month. If you are into any type of gambling, be it casinos or sports betting always check if you are in profit, if your losses are higher then you can make a change or try a different approach. In casino games if your wins are higher than your losses wouldn't your account be banned? I ask myself this question because as an active gambler into casino games there's no way you can be in profit.
I think it depends on the casino, an honest casino that values its reputation will not allow you to be unable to withdraw your winnings if you have a profit. But regarding 1x bet I have read a lot of negative reviews, so regarding this casino I would be worried. But here on the forum there are a lot of casinos that repeatedly check for deposite and withdraw of money, so if you want you can choose one of those that have been here for a long time and value their reputation, I think this was the most reasonable choice.