I'm not a freeroll poker player. I know that the game is very complicated. Winning can be found in the cards you hold and some of the cards on this table require special tricks to win freeroll poker.
There are advantages and disadvantages that poker provides as intended by OP freeroll free games that gamblers can learn without having to spend capital at the start by looking for experience in playing to collect lots of coins for free. Freerolls still help players try new things in it. If OP has been playing for a long time, you can see how other people play so that you can have fun in freerolls as long as the player is comfortable and there are no serious problems.
Very complicated? But is its rules different to the non-free roll poker game? I ask because I'm not into poker but I think poker is already a very complicated game. It needs a good knowledge and skills to play the game and win against your opponents. Freerolls in poker must be the same as free spins in slot games. They have a certain condition to be met in order for us to encash the winnings that came from them. I guess this is what you mean earlier? It make sense because casinos can't just give money like that.
Poker is a card game, so yeah, winning is found on the cards but there are also strategies like bluffing here and it is like a facial expression. They can also help us to win. There are literal free rolls/games, where like you said one doesn't need a capital but there are also some who needs it. Their terms might only be less strict though and then the potential profit is much higher. We can use a free roll to practice but for me, I won't waste the free money for it.
I still can practice later on using the demo mode of the game. When I use a free roll, my goal is still to make money but indeed they are more fun. Guess that is because it is only okay even if we lose them, since they are only free money anyways.