Slot volatility simple guide: what should beginners know?

Short answer
A slot volatility simple guide explains how uneven a slot game can feel. Low volatility usually means smaller and more frequent outcomes. High volatility may mean longer quiet periods and larger feature outcomes when they appear.
How volatility differs from RTP
RTP is a long-term theoretical percentage. Volatility is the rhythm of payouts. Two games can have similar RTP but feel different because one spreads outcomes more evenly while another concentrates them in fewer moments.
Why beginners should care
Volatility affects expectations. A beginner who does not understand it may think a quiet period means the app is broken or that a feature is due. That is not how slot outcomes should be read. Free play is useful for observing rhythm without pressure.
Simple learning checklist
Read the paytable, note the RTP, check the volatility description, observe feature frequency in free play and avoid pages that turn volatility into a guaranteed pattern. Volatility is a learning concept, not a prediction method.
Related next step
After reading this answer, users should read the RTP simple guide and paylines guide. Together, those pages explain the three basic terms beginners need before comparing slot apps.