When a long dry run hits the reels
On the reels, the Wild Jar, Giga Jar, Snowball and Ice Breaker features depend on how each cascade plays out, so how often they land cannot be known before a spin. How often the bonus round comes is random, and the result of one session is random whatever the RTP. Two players on the same RTP can finish with very different balances after the same number of spins.
Every spin on the reels follows one of two RTP versions, and the version in use is shown only in the game rules. Check the game rules before you start, since the two versions return slightly different shares of each stake. The figures for both sit in the RTP table on this page.
Cascades that keep landing with Jar multipliers stacking can climb a long way, but the maximum win of x10,000 times the bet is a ceiling reached very rarely. Treat it as the upper limit of the paytable, not as a target for any session.