Maybe some individual fires are more devastating, but the statistics don't really bear out the "more and more common" narrative.
According to the US forest service, the 5 year average for both number of fires and acreage burned is lower than the 10 and 15 year averages.
https://www.fs.usda.gov/managing-land/fire/wofambrief/firest...
Same story in Canada where the number of fires and total burned acreage has been decreasing slightly over the past four decades.