Short answer. Once a week is a sound start. Twice a week is a common next step. There is no correct number that this site can prescribe, and this page is not medical advice.
What a week can look like
A single supervised class gives you one clean dose of new movement and several days for the skin on your thighs and hands to calm down. Adding a second class helps memory: pole is full of details that fade if you only meet them monthly. A third session is something people grow into. It is not a target for month one.
Soreness in muscles after a new class is ordinary. Pain that is sharp, or in a joint, or still rising after a couple of days, is a reason to skip the next class and, if it persists, to ask a doctor. This guide will not tell you to train through an injury, and it will not tell you that pole fixes one.
Skin needs its own calendar. If the inner thigh is raw, another class the next day usually makes the grip worse, not better. Waiting is training.
Supervised class is not the same as practice
More hours are not automatically more progress if nobody is watching the move. At Flow Factory Brussels, Pole Practice is a booked slot with no teacher. The studio requires at least 10 previous classes before you join. That rule exists so the room is not a beginner’s first experience of an unsupervised pole. Other schools may offer practice, open pole or studio hire on other terms. Those terms are collected, only where published, on where to practise.
Classes, cards and real life
A 10-class card is not an instruction to train 10 times in 10 days. Spread it. If your week already contains another sport, count that. Shoulders and grip are shared.
Based on the way beginner classes are scheduled at Flow Factory, a new student can attend Beginner Level 1 whenever it is on and there is space. Nothing on the studio site asks a beginner to come more than they can recover from. Frequency is your decision, inside the level rules the school actually wrote.