Yeah trading bot competition are mostly found in Big CEX exchanges but i never borders myself on them because bot are bound to loss trades overtime. I have tried trading bot with a trial funds on Kucoin exchange but no success. The bot could not make a dime, it was just a wasted effort, though Kucoin is reputable exchange, one of my preferred exchange.
Generally speaking, I think it is better to trade with your own experience and personal effort than relying on some bot to earn profit.
yes, you're right, bots won't help completely or provide instant profits easily.
There will be mistakes that can happen, especially when the market is unstable.
The bots used are biased copytrading bots and Grid tarding, If you want to try it, then only use the minimum amount of money that you can afford to lose, Don't try with all your money, because losses will definitely occur and don't easily trust bots.
I also rely solely on Spot trading with my basic knowledge, so I know when to enter and when to exit to take profits.