Smokers who have taken up snus use have quit smoking to a significantly greater extent than smokers without snus use, and a substantial proportion has eventually quit snus use as well and become tobacco-free.

https://pmc.ncbi.nlm.nih.gov/articles/PMC5129320/#sec6-ijerph-13-01110

Registrations dated from 1994 to 2023. All participating regions provided data from at least 2015 and forward. Overall prevalence for smoking was 12%, and 13% for snus.

https://journals.sagepub.com/doi/10.1177/14034948251350193

Doesn't really seem to be true exactly. But, snus use is mildly more popular than smoking in Sweden.