Yep, I clearly understand how to limit orders works in ideal case. My question was about unusual case which can be handled ambiguously..
Just use one of the trustworthy exchanges like Binance, OKX, Huobi global and some others and you are good to trade without any technical error or shady means an exchange can use to scam you. Limit order is what it is defined as and not any other thing, it works as it is explained. This is money, it had to work like that. But things can be different on shady exchanges, avoid such exchanges. Limit order works perfectly as expected.