Is there any practical point in playing without a deposit at all, or is it just a way to try out the interface? I would like to understand if it is possible to withdraw something from such bonuses or if everything depends on difficult conditions, because of which the beginner will not receive anything anyway.

It makes sense to play without a deposit if you want to test the interface, understand how the games work and experience the casino atmosphere without investments. I tried this strategy myself on the https://theninewin.uk website and got a small win, which I actually brought out. This is a great way to assess whether you like the platform, whether it's worth playing for real money, and get to know the bonus terms without risking your own funds or creating unnecessary stress.