Hey I am sorry to read that you have had a long stretch of not getting a bonus on Madame Destiny megaways.
Of course there is variance at play and again, being a poker player for a lot of years, I more than understand being on the bad side of variance. But with slots variance should always be lower than table games.
You might mean variance measured in absolute amounts, assuming that table games are generally played on higher bet sizes.
Or maybe you don't know how big the variances are.
Generally I would say that variance of slots is much higher than variance of table games.
The variance of some casino table games:
Baccarat banker, player σ2 about 0,86
Blackjack, σ2 about 1,32
Roulette, straight number σ2 about 34
For slots, the variance stated by slot providers or other sources typically only say the scale, low-medium-high or 1-10,
without specifying the real numbers.
There are variance tables to be found on the internet from casino or affiliate websites, I don't want to link to those,
and some scientists have computed the variance of casino slots based on freedom of information act.
( see table 2 of next link for a casino slot with σ2 = 40:
http://jgi.camh.net/index.php/jgi/article/view/3811/3825 )
The variance of single number roulette σ2 = 34 would considered to be 'low to medium' or 'medium' for a slot.
Madame Destiny Megaways has according to Pragmatic a 5/5 lightning symbols volatility.
The σ2 variance is probably around or above 100.
Some slot providers give the bonus frequency of slots but Pragmatic is not one of them.
Wish you a swift and huge bonus for the next time.