It has reasonably already burst a few times. At this point IT is just a reactionary part of the broader economy. IT being a leading technology experiences bubbles with in itself at as new flavors come around just like any other industry. Like in 2017 there was a huge bubble in tile work with schluter all in one systems. Any reasonable tile layer could take two weekends of classes and start making about $1000 a day installing these new tile systems in commercial buildings. Now the hype is dead most tile jobs are just as they were. There was a bubble in insurance a few years ago with Medicaid advantage plans as well.
Perhaps IT has more bubbles but on the whole comparatively salaries are falling in line with other industries.