In the context of card games such as poker, a 4 raise refers to a bet that is four times the size of the previous bet or raise. Whether a 4 raise is considered normal or not depends on various factors, such as the type of game, the stage of the game, and the style of play of the participants.

In limit games, where there is a predetermined maximum bet size, a 4 raise would not be considered normal since the maximum bet size would be much lower than four times the previous bet. In no-limit or pot-limit games, however, where there is no maximum bet size, a 4 raise may be a relatively common occurrence, especially in aggressive games where players are willing to put a lot of chips at risk to gain an advantage.
In the early stages of a poker game, a 4 raise would typically be seen as an aggressive move that could be used to put pressure on opponents and establish dominance at the table. Such a move could also be used to test the waters and see how opponents react, as well as to gather information about their hand strength and playing style.
In later stages of the game, when the blinds and antes are high and the pot is large, a 4 raise may be a more common occurrence as players become more desperate to win the pot and avoid being eliminated. At this stage, players may be more willing to take risks and make aggressive moves in order to accumulate chips and stay in the game.
The style of play of the participants can also affect how common a 4 raise is. For example, in a tight game where players are more conservative and cautious, a 4 raise may be less common as players tend to play more defensively and avoid putting too many chips at risk. In contrast, in a loose game where players are more aggressive and willing to take risks, a 4 raise may be a more common occurrence as players try to outmaneuver each other and gain an advantage.
Another factor that can affect the frequency of 4 raises is the type of poker variant being played. For example, in Texas Hold’em, a 4 raise may be more common in early position since the player is at a disadvantage and may need to use aggression to win the pot. In contrast, in Omaha, where each player has four hole cards instead of two, a 4 raise may be less common since players have more cards to work with and may not need to be as aggressive to win the pot.
Overall, whether a 4 raise is considered normal or not depends on various factors, such as the type of game, the stage of the game, and the style of play of the participants. In some cases, a 4 raise may be seen as a relatively common occurrence, while in others it may be considered an aggressive move that requires careful consideration and strategy. Ultimately, the decision to make a 4 raise or not should be based on a player’s understanding of the game and the specific situation they are facing at the table.